Patent DE564640C successfully refreshed from Google Patents.
DE564640C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Electromagnetic switching device for intermittently moving film strips, especially for advertising projectors
Assignee: Individual
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Filing: 1931-07-08
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Granted: 1932-11-21
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Expires: 1951-07-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-26 14:19
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/12; G09F19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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