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Padlock Patent — Pin Tumbler

Patent 1797075

Inventor: Croning, Johannes

View on USPTO / Google Patents ↗
Patent # 1797075
Issue Date March 17, 1931
Inventor Croning, Johannes
Assigned To Crown Lock Co.
Type Pin Tumbler

Patent Drawings

Patent 1797075 drawing 1 Drawing 1 Patent 1797075 drawing 2 Drawing 2 Patent 1797075 drawing 3 Drawing 3 Patent 1797075 drawing 4 Drawing 4 Patent 1797075 drawing 5 Drawing 5 Patent 1797075 drawing 6 Drawing 6 Patent 1797075 drawing 7 Drawing 7 Patent 1797075 drawing 8 Drawing 8

Patent Notes

The original patent was for a cylinder lock. | Classification: 70/375

Patent Details

Patent Number 1797075
Issue Date March 17, 1931
Inventor Croning, Johannes
Assigned To Crown Lock Co.
Patent Type Pin Tumbler
External Link https://patents.google.com/patent/US1797075 ↗

Padlocks Using This Patent

2 listings
"CRONING"
#9388
"CRONING"
Crown Lock Co.
→
"CRONING"
#1633
"CRONING"
Crown Lock Co.
→
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