Patent FR928633A successfully refreshed from Google Patents.
FR928633A
Expired / Lapsed
FR
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metallic elements, concentric, blind with self-tightening flange - quickly removable, for heat exchanger between gaseous fluids
Assignee: Heurtey & Cie
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Filing: 1946-06-07
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Granted: 1947-12-03
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Expires: 1966-06-07
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
2026-10-25 01:32
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/10; F28D7/12
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