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FR804362A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements made to the coatings of the chambers for apparatus producing chi rays or the like

Assignee: V D ETS
•
Filing: 1936-03-31
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Granted: 1936-10-22
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Expires: 1956-03-31
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-24 09:22
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; G; G21; G21F; G21F3/00; E04B2001/925

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