FR972333A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to projection devices
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1941-02-04
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Granted: 1951-01-29
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Expires: 1961-02-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/62; G03B21/625
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