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Publication date
Application filedfiledCritical
Priority to JP12518273UpriorityCriticalpatent/JPS5625492Y2/ja
Priority to GB45900/74Aprioritypatent/GB1487604A/en
Priority to US05/517,181prioritypatent/US3956019A/en
Priority to DE2451331Aprioritypatent/DE2451331C3/de
Publication of JPS5069220UpublicationCriticalpatent/JPS5069220U/ja
Priority to HK567/79Aprioritypatent/HK56779A/xx
Application grantedgrantedCritical
Publication of JPS5625492Y2publicationCriticalpatent/JPS5625492Y2/ja