Est. March 2001  ·  10,247 Listings on File

Padlock Patent — Combo

Patent 4751830

Inventor: Ching-Hsiung Cheng

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Patent # 4751830
Issue Date 1987-03-06
Inventor Ching-Hsiung Cheng
Assigned To Stop Lock Inc
Type Combo

Patent Drawings

Patent 4751830 drawing 1 Drawing 1 Patent 4751830 drawing 2 Drawing 2 Patent 4751830 drawing 3 Drawing 3

Patent Details

Patent Number 4751830
Issue Date 1987-03-06
Inventor Ching-Hsiung Cheng
Assigned To Stop Lock Inc
Patent Type Combo
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