FR927024A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to photographic magnifiers and projection lanterns
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1946-05-17
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Granted: 1947-10-17
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Expires: 1966-05-17
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 11:42
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/34; G03B27/36
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