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Priority claimed from JP60025167Aexternal-prioritypatent/JPS61185420A/ja
Priority claimed from JP60166751Aexternal-prioritypatent/JPS6228218A/ja
Priority claimed from JP60166750Aexternal-prioritypatent/JPS6227709A/ja
Application filed by Nifco IncfiledCriticalNifco Inc
Priority claimed from EP86300986Aexternal-prioritypatent/EP0191642B1/de
Application grantedgrantedCritical
Publication of ATE69008T1publicationCriticalpatent/ATE69008T1/de