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Priority to JP5477884UpriorityCriticalpatent/JPS60166894U/ja
Priority to US06/719,998prioritypatent/US4694364A/en
Publication of JPS60166894UpublicationCriticalpatent/JPS60166894U/ja
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Publication of JPH0216472Y2publicationCriticalpatent/JPH0216472Y2/ja