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DE475091C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process and device for the production of composite motion pictures by double exposure

Assignee: SPIEGELTECHNIK AG F
•
Filing: 1927-01-23
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Granted: 1929-04-19
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Expires: 1947-01-23
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-23 16:35
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/08; G03B15/12

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