FR39225E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to internal combustion engines
Assignee: Knut Jonas Elias Hesselman
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Filing: 1930-09-02
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Granted: 1931-10-08
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Expires: 1950-09-02
Abstract
No abstract record available.
Inventors
- 👤 Knut Jonas Elias Hesselman
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 02:36
CPC Classifications
F; F02; F02B; F02B1/00; F02B2720/00; F02B2720/30
Claims Analysis
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References Cited (Backward Citations)
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