FR896311A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device used to obtain clean air in inhabited places
Assignee: Ernest Burkhalter
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Filing: 1943-07-12
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Granted: 1945-02-19
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Expires: 1963-07-12
Abstract
No abstract record available.
Inventors
- 👤 Ernest Burkhalter
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F8/108
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References Cited (Backward Citations)
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