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FR1422937A Expired / Lapsed FR ⏱️ 0.0 years remaining

Miniature tape recorder training device

Assignee: Jean Mazoyer
•
Filing: 1964-11-03
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Granted: 1966-01-03
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Expires: 1984-11-03
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Abstract

No abstract record available.

Inventors

  • 👤 Jean Mazoyer

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-02 21:28
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/665

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