DE444673C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for converting mechanical changes caused by sound (body vibrations, density fluctuations, etc.) into electrical impulses
Assignee: Telefunken AG
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Filing: —
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Granted: 1927-05-27
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Expires: 1944-05-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-08 14:39
CPC Classifications
H; H04; H04R; H04R23/00; H04R23/008
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References Cited (Backward Citations)
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