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Priority claimed from US05/532,745external-prioritypatent/US3938853A/en
Application filed by Christensen Diamond Prod CofiledCriticalChristensen Diamond Prod Co
Publication of NO750267LpublicationCriticalpatent/NO750267L/no
Publication of NO139574BpublicationCriticalpatent/NO139574B/no
Publication of NO139574CpublicationCriticalpatent/NO139574C/no