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Priority claimed from US05/556,754external-prioritypatent/US3962001A/en
Application filed by Gulf Oil CorpfiledCriticalGulf Oil Corp
Priority to AT108978ApriorityCriticalpatent/AT362704B/de
Publication of ATA108978ApublicationCriticalpatent/ATA108978A/de
Application grantedgrantedCritical
Publication of AT362704BpublicationCriticalpatent/AT362704B/de