Est. March 2001  ·  10,244 Listings on File

Padlock Patent — Screw

Patent 505292

Inventor: Hart, William H. Jr.

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Patent # 505292
Issue Date September 19, 1893
Inventor Hart, William H. Jr.
Type Screw

Patent Drawings

Patent 505292 drawing 1 Drawing 1 Patent 505292 drawing 2 Drawing 2

Patent Notes

Classification: 70/236

Patent Details

Patent Number 505292
Issue Date September 19, 1893
Inventor Hart, William H. Jr.
Patent Type Screw
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