Est. March 2001  ·  10,246 Listings on File

Padlock Patent — Keyed

Patent 4372138

Inventor: William E. De Forrest

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Patent # 4372138
Issue Date 1980-10-01
Inventor William E. De Forrest
Type Keyed

Patent Drawings

Patent 4372138 drawing 1 Drawing 1 Patent 4372138 drawing 2 Drawing 2 Patent 4372138 drawing 3 Drawing 3

Patent Details

Patent Number 4372138
Issue Date 1980-10-01
Inventor William E. De Forrest
Patent Type Keyed
External Link https://patents.google.com/patent/US4372138/en ↗
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