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ALBERT-EMMANUEL GIRARDIN
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ALBERT-EMMANUEL GIRARDIN
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Application filed by ALBERT-EMMANUEL GIRARDINfiledCriticalALBERT-EMMANUEL GIRARDIN
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Publication of FR524462ApublicationCriticalpatent/FR524462A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V19/00—Fastening of light sources or lamp holders
F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
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Engineering & Computer Science
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General Engineering & Computer Science
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FR524462A1919-12-201919-12-20Dispositif de réglage en hauteur pour support de lampe électrique à incandescence
ExpiredFR524462A
(fr)
Dispositif de réglage du miroir, de la lampe et du condensateur, dans les lanternes à lumière électrique par incandescence pour projections cinématographiques