Est. March 2001  ·  10,247 Listings on File

Padlock Patent — Combo

Patent 6381997

Inventor: cheng jung Chen

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Patent # 6381997
Issue Date 2001-04-20
Inventor cheng jung Chen
Type Combo

Patent Drawings

Patent 6381997 drawing 1 Drawing 1 Patent 6381997 drawing 2 Drawing 2 Patent 6381997 drawing 3 Drawing 3

Patent Details

Patent Number 6381997
Issue Date 2001-04-20
Inventor cheng jung Chen
Patent Type Combo
External Link https://patents.google.com/patent/US6381997/en ↗
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