Patent FR548938A successfully refreshed from Google Patents.
FR548938A
Expired / Lapsed
FR
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Key for screwing or unscrewing the free wheels of bicycles
Assignee: Pierre-Alfred Bertin
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Filing: 1922-03-15
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Granted: 1923-01-29
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Expires: 1942-03-15
Abstract
No abstract record available.
Inventors
- 👤 Pierre-Alfred Bertin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 08:28
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0071; B25B13/00; B25B13/02; B25B13/10; B25B13/48
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References Cited (Backward Citations)
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