Patent FR1152794A successfully refreshed from Google Patents.
FR1152794A
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Improvements to heating elements for electron tubes
Assignee: EMI Ltd
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Filing: 1956-06-22
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Granted: 1958-02-25
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Expires: 1976-06-22
Abstract
No abstract record available.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 18:57
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J1/22
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