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 JP1988025143UpriorityCriticalpatent/JPH01133041U/ja
Priority to GB8904424Aprioritypatent/GB2216403B/en
Priority to US07/316,963prioritypatent/US4973104A/en
Priority to DE3906263Aprioritypatent/DE3906263A1/de
Publication of JPH01133041UpublicationCriticalpatent/JPH01133041U/ja
