DE828709C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Membrane for electromagnetic telephones
Assignee: ELAC Electroacustic GmbH
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Filing: 1950-08-24
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Granted: 1952-01-21
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Expires: 1970-08-24
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Jung
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
H; H04; H04R; H04R11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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