Est. March 2001  ·  10,244 Listings on File

Padlock Patent — Push Key

Patent 1156739

Inventor: Backus, John Clayton

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Patent # 1156739
Issue Date October 12, 1915
Inventor Backus, John Clayton
Type Push Key

Patent Drawings

Patent 1156739 drawing 1 Drawing 1 Patent 1156739 drawing 2 Drawing 2

Patent Notes

Classification: 00/00

Patent Details

Patent Number 1156739
Issue Date October 12, 1915
Inventor Backus, John Clayton
Patent Type Push Key
External Link https://patents.google.com/patent/US1156739 ↗

Padlocks Using This Patent

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