Patent FR857020A successfully refreshed from Google Patents.
FR857020A
Expired / Lapsed
FR
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Wave switch, especially for t transmitters. s. f.
Assignee: Societe Francaise Radio Electrique
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Filing: 1939-03-17
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Granted: 1940-08-22
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Expires: 1959-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/24; H03J5/242
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