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 JP1987160791UpriorityCriticalpatent/JPH0519048Y2/ja
Priority to US07/181,534prioritypatent/US4936307A/en
Priority to DE3813298Aprioritypatent/DE3813298A1/de
Publication of JPH0165012UpublicationCriticalpatent/JPH0165012U/ja
Application grantedgrantedCritical
Publication of JPH0519048Y2publicationCriticalpatent/JPH0519048Y2/ja
