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Priority to JP1988076952UpriorityCriticalpatent/JPH0623719Y2/ja
Priority to DE3916414Aprioritypatent/DE3916414C3/de
Priority to US07/363,743prioritypatent/US4936271A/en
Publication of JPH01179163UpublicationCriticalpatent/JPH01179163U/ja
Application grantedgrantedCritical
Publication of JPH0623719Y2publicationCriticalpatent/JPH0623719Y2/ja