The Padlock Patent Archive

Three centuries of keeping things shut

Patented September 4, 1877

If an object in your hands says PAT. SEPTEMBER 4, 1877, it may be one of these.

PatentTitleInventorOf
US 194,848IMPROVEMENT IN PADLOCKSFriend W. Smith and Fredrick EggeBridgeport, Connecticut
US 194,849IMPROVEMENT IN PADLOCK-CASESFriend W. Smith and Fredrick EggeBridgeport, Connecticut

All dates