Patent DE2604024B2 successfully refreshed from Google Patents.
FR861490A
Expired / Lapsed
FR
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Optico-physical process for the simultaneous qualitative and quantitative examination of fields of variable density
Assignee: FIRME LUFTFAHRTFORSCHUNGSANSTA
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Filing: 1939-11-08
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Granted: 1941-02-10
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Expires: 1959-11-08
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/45; G01N21/455
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