The Padlock Patent Archive

Three centuries of keeping things shut

Patented July 29, 1879

If an object in your hands says PAT. JULY 29, 1879, it may be one of these.

PatentTitleInventorOf
US 217,874IMPROVEMENT IN SEAL-LOCKSEdgar F. HotchkissUnadilla Forks, New York
US 218,026Padlock.William F. HofmannPhiladelphia, Pennsylvania

All dates