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 JP1987030912UpriorityCriticalpatent/JPH0544933Y2/ja
Priority to US07/162,999prioritypatent/US4875119A/en
Priority to CN88101132.0Aprioritypatent/CN1009137B/zh
Publication of JPS63138667UpublicationCriticalpatent/JPS63138667U/ja
Application grantedgrantedCritical
Publication of JPH0544933Y2publicationCriticalpatent/JPH0544933Y2/ja