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DE667495C
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DE
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Process for reducing the natural frequency of vibration to a specified target value of loudspeaker diaphragms manufactured using the cardboard casting or Schoepf process
Assignee: Telefunken AG
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Filing: 1935-07-09
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Granted: 1938-11-12
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Expires: 1955-07-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 19:34
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/16; H04R7/18; H04R7/20
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