Patent FR920524A successfully refreshed from Google Patents.
Patent US4326515A successfully refreshed from Google Patents.
DE345615C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for recording and reproducing images and sound
Assignee: Individual
•
Filing: 1917-03-14
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Granted: 1921-12-15
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Expires: 1937-03-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 01:47
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/04; G06; G06K; G06K7/00; G06K7/01; G06K7/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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