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 JP1987037723UpriorityCriticalpatent/JPH07702Y2/ja
Priority to DE3808673Aprioritypatent/DE3808673A1/de
Publication of JPS63143764UpublicationCriticalpatent/JPS63143764U/ja
Priority to US07/692,952prioritypatent/US5197342A/en
Application grantedgrantedCritical
Publication of JPH07702Y2publicationCriticalpatent/JPH07702Y2/ja