Patent FR853854A successfully refreshed from Google Patents.
FR853854A
Expired / Lapsed
FR
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Silencers for ventilation ducts and others
Assignee: VENTIL ATEL
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Filing: 1938-11-18
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Granted: 1940-03-30
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Expires: 1958-11-18
Abstract
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Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 23:11
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/02; F16L55/033; F16L55/0336
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