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 JP1985031781UpriorityCriticalpatent/JPH0232074Y2/ja
Publication of JPS61148195UpublicationCriticalpatent/JPS61148195U/ja
Priority to US07/131,282prioritypatent/US4889742A/en
Application grantedgrantedCritical
Publication of JPH0232074Y2publicationCriticalpatent/JPH0232074Y2/ja