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Patent FR54688E successfully refreshed from Google Patents.
FR54688E
Expired / Lapsed
FR
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Footwear ventilation process
Assignee: Jean Duhil
•
Filing: 1946-02-22
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Granted: 1950-07-27
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Expires: 1966-02-22
Abstract
No abstract record available.
Inventors
- 👤 Jean Duhil
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 10:11
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/06
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Total Claims: 0
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References Cited (Backward Citations)
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