DE484339C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Electrodynamic telephone, especially for loudspeakers
Assignee: Alcatel Lucent Deutschland AG
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Filing: —
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Granted: 1929-10-15
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Expires: 1946-10-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 16:40
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/04; H04R9/046; H04R9/047
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References Cited (Backward Citations)
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