Patent DE51161C successfully refreshed from Google Patents.
DE51161C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Innovation in phonographs with writing and speaking mechanisms moving parallel to the phonogram cylinder shaft
Assignee: TH. A. EDISON in Llewellyn Park, Grafschaft Essex, New-Jersey, V. St. A
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Filing: 1889-06-07
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Granted: 1890-03-13
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Expires: 1909-06-07
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
DE
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google_patents
Last Synchronized
2026-10-28 10:59
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