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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Castaneda Y Cia
Original Assignee
Castaneda Y Cia
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Castaneda Y CiafiledCriticalCastaneda Y Cia
Priority to ES87605ApriorityCriticalpatent/ES87605A1/es
Publication of ES87605A1publicationCriticalpatent/ES87605A1/es
ES87605A1923-12-101923-12-10Procedimiento para impedir el ennegrecimiento de las ampollas en las lámparas eléctricas de incandescencia.
ExpiredES87605A1
(es)