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L Bernheim & Cie Soc
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L Bernheim & Cie Soc
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Application filed by L Bernheim & Cie SocfiledCriticalL Bernheim & Cie Soc
Application grantedgrantedCritical
Publication of FR370217ApublicationCriticalpatent/FR370217A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V5/00—Refractors for light sources
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR370217A1906-10-031906-10-03Réflecteur à prismes pour appareils d'éclairage
ExpiredFR370217A
(fr)