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Patent FR662841A successfully refreshed from Google Patents.
FR662841A
Expired / Lapsed
FR
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element for heat exchange
Assignee: Ventilation S A
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Filing: 1928-10-24
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Granted: 1929-08-12
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Expires: 1948-10-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/26; F28F9/262; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/05316; F28D1/05341; F28F9/02; F28F2275/00; F28F2275/20; F28F2275/205
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