FR484101A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Adjustable spark plug for internal combustion engines
Assignee: ROGER-LOUIS-ANTOINE BOURGOGNON
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Filing: 1917-01-06
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Granted: 1917-09-07
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Expires: 1937-01-06
Abstract
No abstract record available.
Inventors
- 👤 Roger-Louis-Antoine Bourgognon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 16:40
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/24
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References Cited (Backward Citations)
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