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Priority to JP14222272UpriorityCriticalpatent/JPS5316326Y2/ja
Priority to GB5547273Aprioritypatent/GB1427607A/en
Priority to US421215Aprioritypatent/US3878472A/en
Priority to CA187,742Aprioritypatent/CA1005765A/en
Publication of JPS4995941UpublicationCriticalpatent/JPS4995941U/ja
Application grantedgrantedCritical
Publication of JPS5316326Y2publicationCriticalpatent/JPS5316326Y2/ja