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E L Friedmann & Co
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E L Friedmann & Co
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Application filed by E L Friedmann & CofiledCriticalE L Friedmann & Co
Application grantedgrantedCritical
Publication of FR521013ApublicationCriticalpatent/FR521013A/fr
F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S13/00—Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR521013A1920-07-231920-07-23Globes de lampes, abat-jour de lampes et réflecteurs avec filtres de lumière
ExpiredFR521013A
(fr)