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Priority to JP1971047470UpriorityCriticalpatent/JPS5138782Y2/ja
Priority to US00256487Aprioritypatent/US3733807A/en
Priority to CH830072Aprioritypatent/CH577205B5/xx
Priority to CH830072Dprioritypatent/CH830072A4/xx
Priority to GB2616872Aprioritypatent/GB1361321A/en
Publication of JPS487072UpublicationCriticalpatent/JPS487072U/ja
Application grantedgrantedCritical
Publication of JPS5138782Y2publicationCriticalpatent/JPS5138782Y2/ja