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 JP910487UpriorityCriticalpatent/JPH0543908Y2/ja
Priority to US07/143,915prioritypatent/US4960340A/en
Priority to DE3801674Aprioritypatent/DE3801674C2/de
Publication of JPS63118979UpublicationCriticalpatent/JPS63118979U/ja
Priority to US07/754,263prioritypatent/US5172996A/en
Application grantedgrantedCritical
Publication of JPH0543908Y2publicationCriticalpatent/JPH0543908Y2/ja