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Priority to JP1975059181UpriorityCriticalpatent/JPS5411643Y2/ja
Priority to FR7612702Aprioritypatent/FR2309360A1/fr
Priority to GB17824/76Aprioritypatent/GB1559327A/en
Publication of JPS51139540UpublicationCriticalpatent/JPS51139540U/ja
Priority to US05/820,561prioritypatent/US4108376A/en
Application grantedgrantedCritical
Publication of JPS5411643Y2publicationCriticalpatent/JPS5411643Y2/ja