Patent US4689046A successfully refreshed from Google Patents.
FR893135A
Expired / Lapsed
FR
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Device keeping the current supplied by an amplifier lamp constant
Assignee: Klangfilm GmbH
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Filing: 1943-04-06
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Granted: 1944-05-31
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Expires: 1963-04-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/34; H03F3/36
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