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FR887031A Expired / Lapsed FR ⏱️ 0.0 years remaining

Photoelectric differential measurement method and device

Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1942-10-21
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Granted: 1943-11-02
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Expires: 1962-10-21
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-27 14:25
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/20; G01J1/34; G01J1/36

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