Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES78284ApriorityCriticalpatent/ES78284A1/es
Publication of ES78284A1publicationCriticalpatent/ES78284A1/es
ES78284A1921-05-141921-05-14Un procedimiento para la fabricación de lámparas eléctricas de incandescencia de filamento irrompible.
ExpiredES78284A1
(es)