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Priority claimed from US05/941,896external-prioritypatent/US4255287A/en
Priority claimed from FI783204Aexternal-prioritypatent/FI64900C/en
Application filed by Phillips Petroleum CofiledCriticalPhillips Petroleum Co
Publication of FI824525A0publicationCriticalpatent/FI824525A0/en
Publication of FI824525LpublicationCriticalpatent/FI824525L/en
Application grantedgrantedCritical
Publication of FI66128BpublicationCriticalpatent/FI66128B/en
Publication of FI66128CpublicationCriticalpatent/FI66128C/en