FR499085A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to devices used to heat or cool air
Assignee: Individual
•
Filing: 1919-05-06
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Granted: 1920-01-30
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Expires: 1939-05-06
Abstract
No abstract record available.
Inventors
- 👤 Albert Strack
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/26; F28F9/262; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/05316; F28D1/05341; F28F9/007; F28F9/013; F28F9/0132
Claims Analysis
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References Cited (Backward Citations)
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