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FR976792A
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Electronic device for simultaneous telephony and telegraphy
Assignee: CONST RADIOPHONIQUES DU CT
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Filing: 1948-10-19
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Granted: 1951-03-22
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Expires: 1968-10-19
Abstract
No abstract record available.
Inventors
- 👤 Edouard Grand
- 👤 Jean Goutelle
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 15:51
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/062; H04J; H04J1/00
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