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Priority to JP13560980UpriorityCriticalpatent/JPS6116429Y2/ja
Priority to US06/254,591prioritypatent/US4511023A/en
Priority to CA000375866Aprioritypatent/CA1196300A/en
Priority to DE19813116673prioritypatent/DE3116673C2/de
Publication of JPS5759527UpublicationCriticalpatent/JPS5759527U/ja
Application grantedgrantedCritical
Publication of JPS6116429Y2publicationCriticalpatent/JPS6116429Y2/ja