DE863084C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Loudspeaker membrane, largely insensitive to high temperatures, with high acoustic efficiency over the entire listening frequency range
Assignee: Siemens Corp
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Filing: 1941-03-07
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Granted: 1953-01-15
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Expires: 1961-03-07
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Dr-Ing Bauer
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 19:28
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/02; H04R7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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