Patent FR728756A successfully refreshed from Google Patents.
FR728756A
Expired / Lapsed
FR
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Variable inductance coil
Assignee: Charles-Jean-Frederi Thomas
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Filing: 1931-12-23
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Granted: 1932-07-11
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Expires: 1951-12-23
Abstract
No abstract record available.
Inventors
- 👤 Charles-Jean-Frederi Thomas
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 23:42
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/005
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Total Claims: 0
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References Cited (Backward Citations)
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