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PROD INSECTICIDES ET ANTI CRYP
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PROD INSECTICIDES ET ANTI CRYP
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Application filed by PROD INSECTICIDES ET ANTI CRYPfiledCriticalPROD INSECTICIDES ET ANTI CRYP
Application grantedgrantedCritical
Publication of FR827529ApublicationCriticalpatent/FR827529A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR827529D1937-01-121937-01-12Dispositif pour l'utilisation de la chaleur émise par le filament d'une lampe électrique à incandescence
ExpiredFR827529A
(fr)