Patent DE650072C successfully refreshed from Google Patents.
DE650072C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Sound film driving device
Assignee: Zeiss Ikon AG
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Filing: 1935-09-10
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Granted: 1937-09-16
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Expires: 1955-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 12:11
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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