FR704725A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Protective helmet for motorists
Assignee: August De Boer
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Filing: 1930-10-29
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Granted: 1931-05-26
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Expires: 1950-10-29
Abstract
No abstract record available.
Inventors
- 👤 August De Boer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 15:35
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B3/062; A42B3/065
Claims Analysis
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References Cited (Backward Citations)
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