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.)
Filing date
Publication date
Priority claimed from US05/646,224external-prioritypatent/US4051180A/en
Application filed by Standard Oil Co OhiofiledCriticalStandard Oil Co Ohio
Priority to AT382778ApriorityCriticalpatent/AT351513B/de
Priority to AT382678Aprioritypatent/AT350528B/de
Priority to AT382378Aprioritypatent/AT351512B/de
Priority to AT382478Aprioritypatent/AT350527B/de
Priority to AT382578Aprioritypatent/AT350522B/de
Priority to AT382878Aprioritypatent/AT351514B/de
Publication of ATA240778ApublicationCriticalpatent/ATA240778A/de
Application grantedgrantedCritical
Publication of AT358005BpublicationCriticalpatent/AT358005B/de