Patent DE741692C successfully refreshed from Google Patents.
DE741692C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Telephones, especially double head telephones, mounted on a headband
Assignee: Deutsche Telephonwerke und Kabelindustrie AG
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Filing: 1939-07-26
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Granted: 1943-11-15
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Expires: 1959-07-26
Abstract
No abstract record available.
Inventors
- 👤 Christian Reuter
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 12:58
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/10; H04R1/1058; H04R1/1066; H04R1/1008; H04R5/00; H04R5/033; H04R5/0335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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