United States Utility Patents, 1836-1853

By Paul K. Graham

This book documents the earliest numbered patents issued by the United States. From the first patent act in 1790 through the summer of 1836, patents were not given a reference number. Instead, they... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0975531271
• ISBN13: 9780975531273
• Release Date: October 2011
• Publisher: Genealogy Company
• Length: 632 Pages
• Weight: 1.92 lbs.
• Dimensions: 1.3" x 6.1" x 9.2"