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Individual
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Individual
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Priority to ES206222ApriorityCriticalpatent/ES206222A3/en
Publication of ES206222A3publicationCriticalpatent/ES206222A3/en
Shadowless light lamp characterized by the two parabolic reflectors with their opposing reflective surfaces conveniently arranged in the bases of a frustoconical reflector manufactured separately from it; system by which the maximum luminous efficiency of the lamp is obtained and better projection of the cone of light of use without shadows. (Machine-translation by Google Translate, not legally binding)
ES206222A1952-11-111952-11-11A lightweight without shadow (Machine-translation by Google Translate, not legally binding)
ExpiredES206222A3
(en)