FR766983A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Filter mass for arsines and fumes
Assignee: Champion & Co Ets
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Filing: 1933-04-04
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Granted: 1934-07-07
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Expires: 1953-04-04
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 02:54
CPC Classifications
A; A62; A62B; A62B21/00
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