DE537196C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Sound absorber to be placed on the voice of microphones
Assignee: JAMES TRIBURCEN FELIX CONTI
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Filing: 1929-06-13
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Granted: 1931-10-30
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Expires: 1949-06-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 16:48
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/19
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