AT35720B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Device for the compulsory guidance of the sound box in speaking machines.
Assignee: Arthur Cerf & Cie Fa
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Filing: 1907-01-17
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Granted: 1909-01-11
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Expires: 1927-01-17
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
2026-10-23 19:38
CPC Classifications
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