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Priority claimed from JP1988087096Uexternal-prioritypatent/JPH0642212Y2/ja
Priority claimed from JP1988087097Uexternal-prioritypatent/JPH0613497Y2/ja
Application filed by Japan Engine Valve MfgfiledCriticalJapan Engine Valve Mfg
Priority claimed from EP89305824Aexternal-prioritypatent/EP0349137B1/de
Application grantedgrantedCritical
Publication of ATE93974T1publicationCriticalpatent/ATE93974T1/de