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Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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Publication of ES400305A1publicationCriticalpatent/ES400305A1/es
ES400305A1971-03-031972-03-01Un metodo de transportar petroleo crudo parafinico y frac- ciones del mismo por tuberias u oleoductos.
ExpiredES400305A1
(es)
Verfahren und vorrichtung zur herstellung von kunststoffrohren mit trennwand, nach dem verfahren hergestelltes kunststoffrohr und verwendung eines solchen kunststoffrohres.