FR727615A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to closed electrical machines with two cooling circuits, one internal and the other external
Assignee: Paul Ehrmann
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Filing: 1931-12-03
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Granted: 1932-06-21
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Expires: 1951-12-03
Abstract
No abstract record available.
Inventors
- 👤 Paul Ehrmann
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 21:56
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/14; H02K9/18
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