Patent DE1004232B successfully refreshed from Google Patents.
DE1004232B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Seamless membrane made of fiber, especially for loudspeakers
Assignee: Individual
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Filing: 1952-11-18
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Granted: —
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Expires: 1972-11-18
Abstract
No abstract record available.
Inventors
- 👤 Ernst Romen
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 13:27
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/02; H04R7/12; H04R7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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