FR783540A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Asymmetric two-direction, directed flux hyperextensive lantern for sodium vapor tube lamps
Assignee: CIE GENERALE ENTPR ELEC
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Filing: 1934-03-23
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Granted: 1935-07-15
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Expires: 1954-03-23
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 10:22
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21Y; F21Y2103/00
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