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Priority to JP5959380UpriorityCriticalpatent/JPS6116426Y2/ja
Priority to US06/254,591prioritypatent/US4511023A/en
Priority to CA000375866Aprioritypatent/CA1196300A/en
Priority to DE19813116673prioritypatent/DE3116673C2/de
Publication of JPS56160332UpublicationCriticalpatent/JPS56160332U/ja
Application grantedgrantedCritical
Publication of JPS6116426Y2publicationCriticalpatent/JPS6116426Y2/ja