Priority date (The priority date 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 date listed.)
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Priority claimed from US07/278,967external-prioritypatent/US4981579A/en
Application filed by Standard Oil Co OhiofiledCriticalStandard Oil Co Ohio
Priority to HU532890ApriorityCriticalpatent/HU207665B/en
Publication of HU905328D0publicationCriticalpatent/HU905328D0/en
Publication of HUT59026ApublicationCriticalpatent/HUT59026A/en
Publication of HU207665BpublicationCriticalpatent/HU207665B/en