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Patent 1971797
Padlock Patent — Keyed
Patent 1971797
Inventor:
Lyle B Shinn
View on USPTO / Google Patents ↗
Patent #
1971797
Issue Date
1932-10-28
Inventor
Lyle B Shinn
Assigned To
Chicago Lock Co
Type
Keyed
Patent Drawings
Drawing 1
Drawing 2
Patent Details
Patent Number
1971797
Issue Date
1932-10-28
Inventor
Lyle B Shinn
Assigned To
Chicago Lock Co
Patent Type
Keyed
External Link
https://patents.google.com/patent/US1971797/en ↗
Padlocks Using This Patent
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#2442
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Chicago Lock Co.
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