DE748720C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Electron tubes for reinforcement purposes with a cathode that emits electrons with practically the same exit speed
Assignee: —
•
Filing: 1936-02-19
•
Granted: 1944-11-08
•
Expires: 1956-02-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 07:14
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE578542C
Cited
US1920863A
Cited
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