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.)
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Priority to JP1987160608UpriorityCriticalpatent/JPH0166523U/ja
Priority to US07/150,390prioritypatent/US4913622A/en
Priority to DE3855315Tprioritypatent/DE3855315T2/de
Priority to EP88300834Aprioritypatent/EP0277044B1/en
Publication of JPH0166523UpublicationCriticalpatent/JPH0166523U/ja
Priority to US07/390,833prioritypatent/US5056987A/en
Priority to US07/816,259prioritypatent/US5197850A/en
