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FR805434A Expired / Lapsed FR ⏱️ 0.0 years remaining

Process for recording and reproducing sounds

Assignee: AEG AG
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Filing: 1936-04-11
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Granted: 1936-11-19
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Expires: 1956-04-11
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-23 12:42
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02

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