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Patent 1752407
Padlock Patent — Combo
Patent 1752407
Inventor:
Zapert Joseph
View on USPTO / Google Patents ↗
Patent #
1752407
Issue Date
1929-02-19
Inventor
Zapert Joseph
Type
Combo
Patent Drawings
Drawing 1
Drawing 2
Drawing 3
Patent Details
Patent Number
1752407
Issue Date
1929-02-19
Inventor
Zapert Joseph
Patent Type
Combo
External Link
https://patents.google.com/patent/US1752407/en ↗
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