A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| Inventor Name | City | State | |
|---|---|---|---|
| Macdonald, John | Cincinnati | OH | View patents |
| Mackenzie, William | Cincinnati | OH | View patents |
| Macneale, Neil | Cincinnati | OH | View patents |
| Macneale, Neil | Cincinnati | OH | View patents |
| Macneale, Neil | Cincinnati | OH | View patents |
| Macy, John | Cincinnati | OH | View patents |
| Maddock, Stephen | Cincinnati | OH | View patents |
| Maddux, William | Cincinnati | OH | View patents |
| Madison, Angelina | Cincinnati | OH | View patents |
| Maeneale, Neil | Cincinnati | OH | View patents |
| Magee, Thomas | Cincinnati | OH | View patents |
| Magee, Thomas | Cincinnati | OH | View patents |
| Magee, Thomas | Cincinnati | OH | View patents |
| Magill, Wesley | Cincinnati | OH | View patents |
| Magill, Wesley | Cincinnati | OH | View patents |
| Maguire, William | Cincinnati | OH | View patents |
| Maguire, William | Cincinnati | OH | View patents |
| Maguire, Wm. | Cincinnati | OH | View patents |
| Maish, Andrew | Cincinnati | OH | View patents |
| Malcolm, Robert | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Males, Samuel | Cincinnati | OH | View patents |
| Maloney, Patrick | Cincinnati | OH | View patents |
| Maltby, B. | Cincinnati | OH | View patents |
| Maltby, Benjamin | Cincinnati | OH | View patents |
| Maltby, Benjamin | Cincinnati | OH | View patents |
| Maltby, Benjamin | Cincinnati | OH | View patents |
| Maltby, Harriet | Cincinnati | OH | View patents |
| Maltby, Harriet | Cincinnati | OH | View patents |
| Mann, Zadock | Cincinnati | OH | View patents |
| Mardock, Thomas | Cincinnati | OH | View patents |
| Mardock, Thomas | Cincinnati | OH | View patents |
| Marks, Leo | Cincinnati | OH | View patents |
| Marlow, George | Cincinnati | OH | View patents |
| Marlow, George | Cincinnati | OH | View patents |
| Marqua, Phillip | Cincinnati | OH | View patents |
| Marsh, Nathan | Cincinnati | OH | View patents |
| Marsh, Nathan | Cincinnati | OH | View patents |
| Marsh, Nathan | Cincinnati | OH | View patents |
| Marsh, Nathan | Cincinnati | OH | View patents |
| Marsh, Nathan | Cincinnati | OH | View patents |
| Marshall, H. | Cincinnati | OH | View patents |
| Martin, Alex | Cincinnati | OH | View patents |
| Martin, Alexander | Cincinnati | OH | View patents |
| Martin, Daniel | Cincinnati | OH | View patents |
| Martin, Frank | Cincinnati | OH | View patents |
| Martin, Henry | Cincinnati | OH | View patents |
| Martin, Jason | Cincinnati | OH | View patents |
| Martin, Peter | Cincinnati | OH | View patents |
| Martin, Peter | Cincinnati | OH | View patents |
| Martin, Peter | Cincinnati | OH | View patents |
| Mather, Orville | Cincinnati | OH | View patents |
| Mathews, Hannibal | Cincinnati | OH | View patents |
| Matthews, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| Maxwell, James | Cincinnati | OH | View patents |
| May, Christian | Cincinnati | OH | View patents |
| Mayer, George | Cincinnati | OH | View patents |
| Mayo, E. | Cincinnati | OH | View patents |
| Mayo, E. | Cincinnati | OH | View patents |
| McAuley, Charles | Carthage | OH | View patents |
| McCandless, Joseph | Cincinnati | OH | View patents |
| McCormick, John | Cincinnati | OH | View patents |
| McDonald, James | Cincinnati | OH | View patents |
| McDonald, John | Cincinnati | OH | View patents |
| McDonald, Samuel | Cincinnati | OH | View patents |
| McFarland, Jas. | Cincinnati | OH | View patents |
| McGill, Sarah | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, W. | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGill, William | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, John | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Theodore | Cincinnati | OH | View patents |
| McGowan, Jr, John | Cincinnati | OH | View patents |
| McGowen, Theodore | Cincinnati | OH | View patents |
| McGregor, George | Cincinnati | OH | View patents |
| McGregor, George | Cincinnati | OH | View patents |
| McGregor, George | Cincinnati | OH | View patents |
| McGrew, A. | Cincinnati | OH | View patents |
| McGrew, Alexander | Cincinnati | OH | View patents |
| McGrew, Alexander | Cincinnati | OH | View patents |
| McHenry, John | Cincinnati | OH | View patents |
| McHenry, John | Cincinnati | OH | View patents |
| McIntyre, Michael | Cincinnati | OH | View patents |
| McKee, William | Cincinnati | OH | View patents |
| McKee, William | Cincinnati | OH | View patents |
| McKenna, Samuel | Cincinnati | OH | View patents |
| McKinley, B. | Cincinnati | OH | View patents |
| McKinney, William | Cincinnati | OH | View patents |
| McKinney, William | Cincinnati | OH | View patents |
| McKinney, William | Cincinnati | OH | View patents |
| McLaughlin, James | Cincinnati | OH | View patents |
| McMillan, Alfred | Cincinnati | OH | View patents |
| McMillen, William | Cincinnati | OH | View patents |
| McMillen, William | Cincinnati | OH | View patents |
| McMillen, William | Cincinnati | OH | View patents |
| McMinn, George | Cincinnati | OH | View patents |
| McNeill, Aaron | Cincinnati | OH | View patents |
| McPherson, John | New Vienna | OH | View patents |
| Meehan, J. | Covington | KY | View patents |
| Meehan, James | Covington | KY | View patents |
| Meehan, James | Covington | KY | View patents |
| Mefford, David | Cincinnati | OH | View patents |
| Mefford, David | Cincinnati | OH | View patents |
| Meier, George | Cincinnati | OH | View patents |
| Meinig, Julius | Cincinnati | OH | View patents |
| Menke, Bernard | Cincinnati | OH | View patents |
| Menke, Bernard | Cincinnati | OH | View patents |
| Menke, Bernard | Cincinnati | OH | View patents |
| Menke, Bernard | Cincinnati | OH | View patents |
| Merrell, Albert | Cincinnati | OH | View patents |
| Merrie, Hugh | Cincinnati | OH | View patents |
| Merrie, Hugh | Cincinnati | OH | View patents |
| Merrill, John | Cincinnati | OH | View patents |
| Merrill, John | Cincinnati | OH | View patents |
| Merrill, John | Cincinnati | OH | View patents |
| Merrill, John | Cincinnati | OH | View patents |
| Merrill, John | Cincinnati | OH | View patents |
| Merritt, Isaac | Cincinnati | OH | View patents |
| Metz, Edward | Cincinnati | OH | View patents |
| Meyer, Julius | Cincinnati | OH | View patents |
| Meyer, Julius | Cincinnati | OH | View patents |
| Michaels, Lewis | Cincinnati | OH | View patents |
| Michell, Lucius | Cincinnati | OH | View patents |
| Middleton, Elijah | Cincinnati | OH | View patents |
| Miles, George | Michigan City | IN | View patents |
| Miller, Charles | Cincinnati | OH | View patents |
| Miller, Charles | Cincinnati | OH | View patents |
| Miller, Charles | Cincinnati | OH | View patents |
| Miller, Charles | Cincinnati | OH | View patents |
| Miller, Frederick | Cincinnati | OH | View patents |
| Miller, Fredric | Cincinnati | OH | View patents |
| Miller, Fredrich | Cincinnati | OH | View patents |
| Miller, Fredrick | Cincinnati | OH | View patents |
| Miller, George | Cincinnati | OH | View patents |
| Miller, Harvey | Cincinnati | OH | View patents |
| Miller, Harvey | Cincinnati | OH | View patents |
| Miller, Hezekiah | Cincinnati | OH | View patents |
| Miller, John | Springfield | OH | View patents |
| Miller, John | Cincinnati | OH | View patents |
| Miller, John | Cincinnati | OH | View patents |
| Miller, Joseph | Cincinnati | OH | View patents |
| Miller, Joseph | Cincinnati | OH | View patents |
| Miller, Louis | Cincinnati | OH | View patents |
| Miller , William | Cincinnati | OH | View patents |
| Miller, William | Cincinnati | OH | View patents |
| Miller , William | Cincinnati | OH | View patents |
| Miller, William | Cincinnati | OH | View patents |
| Millward, Francis | Cincinnati | OH | View patents |
| Millward, Frank | Cincinnati | OH | View patents |
| Millward, Frank | Cincinnati | OH | View patents |
| Millward, Frank | Cincinnati | OH | View patents |
| Milward, Frank | Cincinnati | OH | View patents |
| Mitchell, Henry | Cincinnati | OH | View patents |
| Mitchell, John | Cincinnati | OH | View patents |
| Mitchell, John | Cincinnati | OH | View patents |
| Mitchell, O. | Cincinnati | OH | View patents |
| Moloney, John | Cincinnati | OH | View patents |
| Monroe, George | Cincinnati | OH | View patents |
| Monroe, James | Cincinnati | OH | View patents |
| Mood, Robert | Cincinnati | OH | View patents |
| Moody, James | Cincinnati | OH | View patents |
| Moody, James | Cincinnati | OH | View patents |
| Moody, John | Cincinnati | OH | View patents |
| More, R. | Cincinnati | OH | View patents |
| Morgan, David | Cincinnati | OH | View patents |
| Morgan, Edward | Cincinnati | OH | View patents |
| Morgan, Robert | Cincinnati | OH | View patents |
| Morris, Charles | Cincinnati | OH | View patents |
| Morris, Charles | Cincinnati | OH | View patents |
| Morris, Charles | Cincinnati | OH | View patents |
| Morris, John | Cincinnati | OH | View patents |
| Morris, John | Cincinnati | OH | View patents |
| Morris, John | Cincinnati | OH | View patents |
| Morris, John | Cincinnati | OH | View patents |
| Morris, John | Cincinnati | OH | View patents |
| Morris, William | Cincinnati | OH | View patents |
| Morrison, Thomas | Cincinnati | OH | View patents |
| Morton, John | Cincinnati | OH | View patents |
| Morton, John | Sedalia | MO | View patents |
| Morton, John | Cincinnati | OH | View patents |
| Moseley, Thomas | Cincinnati | OH | View patents |
| Moser, Ignatz | Cincinnati | OH | View patents |
| Moss, Israel | Cincinnati | OH | View patents |
| Mosteller, William | Sharonville | OH | View patents |
| Mowry, A. | Cincinnati | OH | View patents |
| Mowry, Albert | Cincinnati | OH | View patents |
| Moyle, James | Cincinnati | OH | View patents |
| Muhle, William | Cincinnati | OH | View patents |
| Mullaney, Daniel | Cincinnati | OH | View patents |
| Munson, Francis | Cincinnati | OH | View patents |
| Murdock, John | Cincinnati | OH | View patents |
| Murdock, John | Cincinnati | OH | View patents |
| Murdock, John | Cincinnati | OH | View patents |
| Murdock, Jr, James | Cincinnati | OH | View patents |
| Murphey, Thomas | Cincinnati | OH | View patents |
| Murphy, Merrick | Cincinnati | OH | View patents |
| Murray, Francis | Cincinnati | OH | View patents |
| Murray, Marsena | Cincinnati | OH | View patents |
| Murray, Marsena | Cincinnati | OH | View patents |
| Muscroft, C. | Cincinnati | OH | View patents |
| Musgrave, Hiram | Cincinnati | OH | View patents |
| Musgrave, Hiram | Cincinnati | OH | View patents |
| Musgrave, Hiram | Cincinnati | OH | View patents |
| Musgrave, James | Cincinnati | OH | View patents |
| Musser, Ferdinand | Cincinnati | OH | View patents |
| Muth, Augustus | Cincinnati | OH | View patents |
| Muth, Henry | Cincinnati | OH | View patents |
| Myers, Edward | Cincinnati | OH | View patents |
| Myers, Edward | Cincinnati | OH | View patents |
| Myers, Edward | Cincinnati | OH | View patents |
| Myers, John | Cincinnati | OH | View patents |
| Myers, John | Cincinnati | OH | View patents |