Title: Pipe elbow
Patent number: 131,499
Date granted: 9/24/1872
View this patent at the USPTO.
Inventor: Addis Chamberlain
Inventor: John Crowley
Title: Pipe elbow
Patent number: 131,499
Date granted: 9/24/1872
View this patent at the USPTO.
Inventor: Addis Chamberlain
Inventor: John Crowley