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Publication date
Application filedfiledCritical
Priority to JP1980129067UpriorityCriticalpatent/JPS6350145Y2/ja
Priority to CA000363604Aprioritypatent/CA1153988A/en
Priority to GB8036004Aprioritypatent/GB2074949B/en
Priority to DE3043039Aprioritypatent/DE3043039C2/de
Priority to FR8024254Aprioritypatent/FR2480198B1/fr
Publication of JPS5753374UpublicationCriticalpatent/JPS5753374U/ja
Priority to US07/009,542prioritypatent/US4721404A/en
Priority to US07/108,675prioritypatent/US4840509A/en
Application grantedgrantedCritical
Publication of JPS6350145Y2publicationCriticalpatent/JPS6350145Y2/ja