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Application filedfiledCritical
Priority to JP17419087UpriorityCriticalpatent/JPH0532083Y2/ja
Priority to EP88117854Aprioritypatent/EP0315040B1/en
Priority to DE8888117854Tprioritypatent/DE3877894T2/de
Priority to US07/264,105prioritypatent/US4974591A/en
Priority to KR1019880014123Aprioritypatent/KR920000733B1/ko
Priority to CN 88107502prioritypatent/CN1029364C/zh
Priority to CA000582049Aprioritypatent/CA1323074C/en
Publication of JPH0177709UpublicationCriticalpatent/JPH0177709U/ja
Priority to SU914895426Aprioritypatent/RU2096992C1/ru
Application grantedgrantedCritical
Publication of JPH0532083Y2publicationCriticalpatent/JPH0532083Y2/ja