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FR892547A Expired / Lapsed FR ⏱️ 0.0 years remaining

Fixed view projector with built-in magnetic phono reproduction device or attached to the projector

Assignee: IG Farbenindustrie AG
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Filing: 1943-03-17
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Granted: 1944-04-11
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Expires: 1963-03-17
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-28 16:53
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06

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