FR878209A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Powerline multiplex transmission system
Assignee: Lignes Telegraphiques et Telephoniques LTT SA
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Filing: 1941-12-31
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Granted: 1943-01-14
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Expires: 1961-12-31
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/04; H04J1/045
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