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Priority to JP1986164940UpriorityCriticalpatent/JPH0611816Y2/ja
Priority to US07/111,518prioritypatent/US4766449A/en
Priority to DE19873736719prioritypatent/DE3736719A1/de
Publication of JPS6370349UpublicationCriticalpatent/JPS6370349U/ja
Application grantedgrantedCritical
Publication of JPH0611816Y2publicationCriticalpatent/JPH0611816Y2/ja