FR820897A
Expired / Lapsed
FR
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Method and apparatus for air purification
Assignee: DeVilbiss Co
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Filing: 1937-04-21
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Granted: 1937-11-20
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Expires: 1957-04-21
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
2026-10-31 03:48
CPC Classifications
B; B05; B05B; B05B14/00; B05B14/40; B05B14/46; B05B14/465; F; F24; F24F; F24F8/00; F24F8/10; F24F8/117; F24F8/133
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