DE670106C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for marking radio tubes or other discharge tubes with regard to authenticity and prior use
Assignee: RCA Corp
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Filing: 1936-05-17
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Granted: 1939-01-11
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Expires: 1956-05-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 18:16
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/42; H01J5/00; H01J5/02; H01J5/08
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References Cited (Backward Citations)
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