Est. March 2001  ·  10,247 Listings on File

Padlock Patent — Combo

Patent 7152439

Inventor: Chin-Shu Chang

View on USPTO / Google Patents ↗
Patent # 7152439
Issue Date 2006-02-01
Inventor Chin-Shu Chang
Assigned To HSU CHIEN-YUAN
Type Combo

Patent Drawings

Patent Details

Patent Number 7152439
Issue Date 2006-02-01
Inventor Chin-Shu Chang
Assigned To HSU CHIEN-YUAN
Patent Type Combo
External Link https://patents.google.com/patent/US7152439/en ↗
↑ Back to Patent Database