Est. March 2001  ·  10,244 Listings on File

Padlock Patent — Combo

Patent 1857399

Inventor: Piagneri Umberto

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Patent # 1857399
Issue Date 1930-01-13
Inventor Piagneri Umberto
Type Combo

Patent Drawings

Patent 1857399 drawing 1 Drawing 1

Patent Details

Patent Number 1857399
Issue Date 1930-01-13
Inventor Piagneri Umberto
Patent Type Combo
External Link https://patents.google.com/patent/US1857399/en ↗
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