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Priority to JP6562674UpriorityCriticalpatent/JPS5433408Y2/ja
Priority to US05/572,561prioritypatent/US4007364A/en
Priority to DE19752519385prioritypatent/DE2519385A1/de
Priority to FR7513783Aprioritypatent/FR2269748B3/fr
Publication of JPS50152531UpublicationCriticalpatent/JPS50152531U/ja
Application grantedgrantedCritical
Publication of JPS5433408Y2publicationCriticalpatent/JPS5433408Y2/ja