Patent FR771394A successfully refreshed from Google Patents.
FR771394A
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FR
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Lighting device for patterns carried by glass plates, more particularly by means of phosphorescent substances
Assignee: Holophane SAS
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Filing: 1933-07-03
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Granted: 1934-10-06
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Expires: 1953-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/06; B44C; B44C5/00; B44C5/005; F; F21; F21W; F21W2121/00
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