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Priority to JP1986108465UpriorityCriticalpatent/JPH0639684Y2/ja
Priority to DE3751117Tprioritypatent/DE3751117T2/de
Priority to EP91113305Aprioritypatent/EP0460711B1/en
Priority to EP87109728Aprioritypatent/EP0253268B1/en
Priority to DE8787109728Tprioritypatent/DE3783281T2/de
Publication of JPS6316005UpublicationCriticalpatent/JPS6316005U/ja
Priority to US07/300,216prioritypatent/US4895158A/en
Application grantedgrantedCritical
Publication of JPH0639684Y2publicationCriticalpatent/JPH0639684Y2/ja