FR397812A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Enclosed coil and counterflow device that can be used as refrigerant and heater
Assignee: Individual
•
Filing: 1908-12-23
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Granted: 1909-05-18
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Expires: 1928-12-23
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Langer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 05:36
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/04; F28D1/00; F28D1/06; F28D7/02; F28D7/022
Claims Analysis
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References Cited (Backward Citations)
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