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Priority to JP7281874UpriorityCriticalpatent/JPS5323180Y2/ja
Priority to US05/557,013prioritypatent/US3948038A/en
Priority to GB10795/75Aprioritypatent/GB1501423A/en
Priority to CH505975Aprioritypatent/CH609829B/fr
Publication of JPS512971UpublicationCriticalpatent/JPS512971U/ja
Application grantedgrantedCritical
Publication of JPS5323180Y2publicationCriticalpatent/JPS5323180Y2/ja