DE899674C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Electrodynamic sound generator, preferably for high frequencies
Assignee: Siemens Corp
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Filing: 1951-08-28
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Granted: 1953-12-14
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Expires: 1971-08-28
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Dr Heinrich Kalusche
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/025; H04R9/027
Claims Analysis
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References Cited (Backward Citations)
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