FR730583A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for maintaining constant the filament-plate quiescent current in amplifier lamps
Assignee: Individual
•
Filing: 1932-01-27
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Granted: 1932-08-18
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Expires: 1952-01-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 13:08
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/20; H03F3/22; H03F1/00; H03F1/52; H03F1/54; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607; H04B1/1623
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