FR814110A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to devices for filtering air or other gases
Assignee: Compagnie de Saint Gobain SA
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Filing: 1936-11-27
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Granted: 1937-06-17
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Expires: 1956-11-27
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 20:48
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/12
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