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 JP16048788UpriorityCriticalpatent/JPH0424114Y2/ja
Priority to US07/432,913prioritypatent/US4938452A/en
Priority to US07/480,550prioritypatent/US4938614A/en
Priority to US07/514,147prioritypatent/US4981284A/en
Publication of JPH0280736UpublicationCriticalpatent/JPH0280736U/ja
Application grantedgrantedCritical
Publication of JPH0424114Y2publicationCriticalpatent/JPH0424114Y2/ja