FR557583A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to temperature exchangers such as radiators, air condensers
Assignee: Emile-Etienne Armand
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Filing: 1922-10-18
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Granted: 1923-08-11
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Expires: 1942-10-18
Abstract
No abstract record available.
Inventors
- 👤 Emile-Etienne Armand
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
F; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28D21/0005; F28D21/0008; F28D1/00; F28D1/02; F28D1/0233; F28D1/024
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