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Priority claimed from JP63170086Aexternal-prioritypatent/JPH0219502A/en
Priority claimed from JP17008588Aexternal-prioritypatent/JPH0219180A/en
Application filed by K & K IncfiledCriticalK & K Inc
Priority claimed from EP19890306920external-prioritypatent/EP0351147B1/en
Application grantedgrantedCritical
Publication of ATE94353T1publicationCriticalpatent/ATE94353T1/en