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Patent DE398750C successfully refreshed from Google Patents.
DE398750C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Viewfinder for cinematographic recording devices
Assignee: NIKOLAUS LYON DR
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Filing: 1921-07-12
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Granted: 1924-07-19
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Expires: 1941-07-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 13:35
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/14
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References Cited (Backward Citations)
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