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Priority to JP4762575UpriorityCriticalpatent/JPS5617143Y2/ja
Priority to CH1169375Aprioritypatent/CH591923A5/xx
Priority to US05/618,759prioritypatent/US3993297A/en
Priority to SU752177195Aprioritypatent/SU577949A3/ru
Publication of JPS51127168UpublicationCriticalpatent/JPS51127168U/ja
Application grantedgrantedCritical
Publication of JPS5617143Y2publicationCriticalpatent/JPS5617143Y2/ja