FR1023285A
Expired / Lapsed
FR
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Improvements to telephone connection means
Assignee: Caradeau & Cie
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Filing: 1950-08-12
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Granted: 1953-03-16
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Expires: 1970-08-12
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 13:06
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/08; H04M9/087; H04B; H04B3/00; H04B3/02; H04B3/20; H04B3/21; H04J; H04J1/00; H04J1/02; H04J1/08
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