FR1186648A
Expired / Lapsed
FR
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Progressive field tube with waveguide
Assignee: Siemens and Halske AG
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Filing: 1957-11-21
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Granted: 1959-08-28
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Expires: 1977-11-21
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 04:36
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J25/00; H01J25/34
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