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Priority to JP1975171631UpriorityCriticalpatent/JPS5814341Y2/ja
Priority to GB51952/76Aprioritypatent/GB1538798A/en
Priority to US05/751,161prioritypatent/US4145132A/en
Priority to DE19762657552prioritypatent/DE2657552A1/de
Publication of JPS5284224UpublicationCriticalpatent/JPS5284224U/ja
Application grantedgrantedCritical
Publication of JPS5814341Y2publicationCriticalpatent/JPS5814341Y2/ja