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 JP1987194031UpriorityCriticalpatent/JPH0625380Y2/ja
Priority to US07/282,772prioritypatent/US4933615A/en
Priority to GB8829227Aprioritypatent/GB2212591B/en
Publication of JPH0198724UpublicationCriticalpatent/JPH0198724U/ja
Application grantedgrantedCritical
Publication of JPH0625380Y2publicationCriticalpatent/JPH0625380Y2/ja
