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FR993915A Expired / Lapsed FR ⏱️ 0.0 years remaining

Devices and types of lighting apparatus which make it possible to modify in an improved manner the spectral composition of a light by additive synthesis, and rationally ensure the distribution of the modified lighting

Assignee: Pierre-Leon-Albert Malifaud
•
Filing: 1949-04-20
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Granted: 1951-11-08
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Expires: 1969-04-20
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Abstract

No abstract record available.

Inventors

  • 👤 Pierre-Leon-Albert Malifaud

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-30 12:14
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21V7/0008

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