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Priority claimed from JP1988071682Uexternal-prioritypatent/JPH01175807U/ja
Priority claimed from JP1988074296Uexternal-prioritypatent/JPH01178926U/ja
Priority claimed from JP7429788Uexternal-prioritypatent/JPH01178927U/ja
Application filed by Sankyo EngfiledCriticalSankyo Eng
Priority claimed from EP88311116Aexternal-prioritypatent/EP0344381B1/en
Application grantedgrantedCritical
Publication of ATE88131T1publicationCriticalpatent/ATE88131T1/en