Cincinnati Inventors Database

This database indexes patents issued to Cincinnati and Hamilton County Ohio Inventors from 1814 through 1873. Each entry provides a link to the U.S. Patent & Trademark Office website. TIFF software is required to view a patent full-image.

Browse by first letter of last name

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Browse by first letter of invention

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Horseshoe, Patent number 56,181 Horseshoe, Patent number 56,181

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