Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP1987151468UpriorityCriticalpatent/JPH0431146Y2/ja
Priority to US07/252,305prioritypatent/US4880277A/en
Publication of JPS6455134UpublicationCriticalpatent/JPS6455134U/ja
Application grantedgrantedCritical
Publication of JPH0431146Y2publicationCriticalpatent/JPH0431146Y2/ja
