Patent US5188638A successfully refreshed from Google Patents.
FR865068A
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FR
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High efficiency reflector or projector
Assignee: MACHAL PROJECTEURS
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Filing: 1940-04-19
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Granted: 1941-05-13
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Expires: 1960-04-19
Abstract
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Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 17:31
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21S; F21S41/00; F21S41/20; F21S41/28; F21S41/30; F21S41/32; F21S41/321; F21W; F21W2107/00; F21W2107/10
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