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Application filedfiledCritical
Priority to JP16363077UpriorityCriticalpatent/JPS578068Y2/ja
Priority to US05/891,601prioritypatent/US4183018A/en
Priority to GB21015/78Aprioritypatent/GB1600808A/en
Priority to CA306,142Aprioritypatent/CA1103963A/en
Publication of JPS5488279UpublicationCriticalpatent/JPS5488279U/ja
Application grantedgrantedCritical
Publication of JPS578068Y2publicationCriticalpatent/JPS578068Y2/ja