FR563227A
Expired / Lapsed
FR
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Apparatus used for research and constitution of compound shades, as well as for determining the proportions of primary shades necessary to obtain them
Assignee: Georges-Rene Fouilleul
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Filing: 1921-10-25
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Granted: 1923-11-29
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Expires: 1941-10-25
Abstract
No abstract record available.
Inventors
- 👤 Georges-Rene Fouilleul
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/52; G01J3/522
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