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Priority to JP1974109159UpriorityCriticalpatent/JPS5410259Y2/ja
Priority to US05/612,027prioritypatent/US4027113A/en
Priority to DE19752540839prioritypatent/DE2540839C3/de
Priority to CA235,700Aprioritypatent/CA1028768A/en
Publication of JPS5136918UpublicationCriticalpatent/JPS5136918U/ja
Application grantedgrantedCritical
Publication of JPS5410259Y2publicationCriticalpatent/JPS5410259Y2/ja