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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Pirelli and C SpA
Original Assignee
Pirelli SpA
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Filing date
Publication date
Application filed by Pirelli SpAfiledCriticalPirelli SpA
Priority to ES135162ApriorityCriticalpatent/ES135162A1/es
Publication of ES135162A1publicationCriticalpatent/ES135162A1/es
ES135162A1934-07-141934-07-14Un aparato protector antigás para la permanencia a grandes altitudes y para otras aplicaciones análogas.
ExpiredES135162A1
(es)
Un procedimiento para la separación del antimonio y del arsénico, con aprovechamiento de todo el mineral y sin peligro para los obreros ni daño para el cultivo.