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Priority to JP6753871UpriorityCriticalpatent/JPS5119891Y2/ja
Priority to NL727209224Aprioritypatent/NL152081B/xx
Priority to US00274446Aprioritypatent/US3761949A/en
Priority to AU45165/72Aprioritypatent/AU435417B2/en
Publication of JPS4825756UpublicationCriticalpatent/JPS4825756U/ja
Application grantedgrantedCritical
Publication of JPS5119891Y2publicationCriticalpatent/JPS5119891Y2/ja