Patent FR541011A successfully refreshed from Google Patents.
FR541011A
Expired / Lapsed
FR
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Device for filtering surfaces supports with reinforced cement pipes for blowing compressed air
Assignee: Chabal & Cie H
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Filing: 1921-09-12
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Granted: 1922-07-21
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Expires: 1941-09-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 21:06
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/20; B01D24/22; B01D2201/00; B01D2201/08; B01D2201/087; B01D24/46; B01D24/4668; B01D24/4684
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