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Patent DE663239C successfully refreshed from Google Patents.
DE663239C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Arrangement for controlling radiation, in particular for telegraphic purposes
Assignee: ELSA MUELLER GEB SCHOENICKE
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Filing: 1928-12-02
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Granted: 1938-08-01
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Expires: 1948-12-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 23:31
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66
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