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Priority claimed from US05/685,301external-prioritypatent/US4087412A/en
Application filed by Minnesota Mining & MfgfiledCriticalMinnesota Mining & Mfg
Priority to AT366280ApriorityCriticalpatent/AT381713B/en
Publication of ATA366280ApublicationCriticalpatent/ATA366280A/en
Application grantedgrantedCritical
Publication of AT381713BpublicationCriticalpatent/AT381713B/en