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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Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES257523A1publicationCriticalpatent/ES257523A1/en
Method of execution of vertically welded seams not prepared, in which the electric arcs are directed simultaneously from two sides towards the seam, one of the electric arcs being fed with alternating current and the other with direct current. (Machine-translation by Google Translate, not legally binding)
ES0257523A1959-04-241960-04-21Method of execution of vertical solded seams not prepared (Machine-translation by Google Translate, not legally binding)
ExpiredES257523A1
(en)