Est. March 2001  ·  10,247 Listings on File

Padlock Patent — Combo

Patent 4899559

Inventor: Jenn-Rong Chern

View on USPTO / Google Patents ↗
Patent # 4899559
Issue Date 1988-11-30
Inventor Jenn-Rong Chern
Type Combo

Patent Drawings

Patent 4899559 drawing 1 Drawing 1 Patent 4899559 drawing 2 Drawing 2 Patent 4899559 drawing 3 Drawing 3

Patent Details

Patent Number 4899559
Issue Date 1988-11-30
Inventor Jenn-Rong Chern
Patent Type Combo
External Link https://patents.google.com/patent/US4899559/en ↗
← 490537
↑ Back to Patent Database
490537 →