Est. March 2001  ·  10,244 Listings on File

Padlock Patent — Combo

Patent 1423840

Inventor: Frederick A Durbin

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Patent # 1423840
Issue Date 1921-05-18
Inventor Frederick A Durbin
Assigned To JOSEPH F MADAY
Type Combo

Patent Drawings

Patent 1423840 drawing 1 Drawing 1

Patent Details

Patent Number 1423840
Issue Date 1921-05-18
Inventor Frederick A Durbin
Assigned To JOSEPH F MADAY
Patent Type Combo
External Link https://patents.google.com/patent/US1423840/en ↗
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