FR981678A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement in spark plugs
Assignee: Raymond-Henri Devaux
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Filing: 1949-01-10
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Granted: 1951-05-29
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Expires: 1969-01-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond-Henri Devaux
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 15:12
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/46; H01T13/467
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Total Claims: 0
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References Cited (Backward Citations)
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