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DE484819C
Expired / Lapsed
DE
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Alarm device, especially for the deaf
Assignee: MICHAEL WIMMER JUN
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Filing: —
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Granted: 1929-10-24
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Expires: 1946-10-24
Abstract
No abstract record available.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 06:12
CPC Classifications
G; G04; G04B; G04B25/00; G04B25/02; G04B25/04
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