Est. March 2001  ·  10,244 Listings on File

Padlock Patent — Keyed

Patent 4033156

Inventor: Michael H. Cottingham

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Patent # 4033156
Issue Date 1976-09-23
Inventor Michael H. Cottingham
Type Keyed

Patent Drawings

Patent 4033156 drawing 1 Drawing 1 Patent 4033156 drawing 2 Drawing 2 Patent 4033156 drawing 3 Drawing 3

Patent Details

Patent Number 4033156
Issue Date 1976-09-23
Inventor Michael H. Cottingham
Patent Type Keyed
External Link https://patents.google.com/patent/US4033156/en ↗
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