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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to ES143164ApriorityCriticalpatent/ES143164A1/es
Publication of ES143164A1publicationCriticalpatent/ES143164A1/es
ES143164A1936-09-191936-09-19Una válvula de descarga que contiene vapor y esta rodeada por una envoltura en la que se ha hecho el vacío.
ExpiredES143164A1
(es)