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FR1233409A Expired / Lapsed FR ⏱️ 0.0 years remaining

Multiple frequency signal generators

Assignee: AT&T Inc
•
Filing: 1959-08-24
•
Granted: 1960-10-12
•
Expires: 1979-08-24
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-27 11:00
CPC Classifications
H; H04; H04M; H04M19/00; H04M19/02; H04M19/04; H04M1/00; H04M1/26; H04M1/30; H04M1/50

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