DE884516C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Electrostatic microphone
Assignee: Siemens Corp
•
Filing: 1940-12-10
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Granted: 1953-07-27
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Expires: 1960-12-10
Abstract
No abstract record available.
Inventors
- 👤 Martin Dipl-Ing Gosewinkel
- 👤 Elisabeth Maria Dipl-I Philipp
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
H; H04; H04R; H04R19/00; H04R19/04; H04R1/00; H04R1/20; H04R1/32; H04R1/326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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