Patent FR733549A successfully refreshed from Google Patents.
FR733549A
Expired / Lapsed
FR
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keypad current pulse transmitter
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1932-03-15
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Granted: 1932-10-07
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Expires: 1952-03-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 11:25
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/272
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