Patent AT105547B successfully refreshed from Google Patents.
AT105547B
Expired / Lapsed
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Setup for microphone and telephone sets.
Assignee: Siemens Ag
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Filing: 1925-08-31
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Granted: 1927-02-10
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Expires: 1945-08-31
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-10-25 05:28
CPC Classifications
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