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Patent 1668441
Padlock Patent — Combo
Patent 1668441
Inventor:
Rolla E Willey
View on USPTO / Google Patents ↗
Patent #
1668441
Issue Date
1927-04-28
Inventor
Rolla E Willey
Type
Combo
Patent Drawings
Drawing 1
Drawing 2
Patent Details
Patent Number
1668441
Issue Date
1927-04-28
Inventor
Rolla E Willey
Patent Type
Combo
External Link
https://patents.google.com/patent/US1668441/en ↗
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