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Priority to JP250490UpriorityCriticalpatent/JPH0394092U/ja
Priority to DE69030481Tprioritypatent/DE69030481T2/de
Priority to EP90311426Aprioritypatent/EP0424139B1/en
Priority to KR1019900016594Aprioritypatent/KR910008930A/ko
Priority to US07/602,444prioritypatent/US5247220A/en
Publication of JPH0394092UpublicationCriticalpatent/JPH0394092U/ja
Priority to US08/363,557prioritypatent/US5521455A/en
