Patent US1070209A successfully refreshed from Google Patents.
FR862931A
Expired / Lapsed
FR
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Pulse sender, in particular for subscribers of an automatic telephone network
Assignee: Thales SA
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Filing: 1939-09-08
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Granted: 1941-03-19
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Expires: 1959-09-08
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 04:51
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274
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