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Priority to JP1976003320UpriorityCriticalpatent/JPS5546512Y2/ja
Priority to GB1436/77Aprioritypatent/GB1532171A/en
Priority to DE2701335Aprioritypatent/DE2701335C3/de
Priority to US05/760,009prioritypatent/US4149463A/en
Publication of JPS5297105UpublicationCriticalpatent/JPS5297105U/ja
Application grantedgrantedCritical
Publication of JPS5546512Y2publicationCriticalpatent/JPS5546512Y2/ja