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.)
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Priority to JP9989887UpriorityCriticalpatent/JPS644487U/ja
Priority to DE8888303186Tprioritypatent/DE3872084T2/de
Priority to EP88303186Aprioritypatent/EP0300592B1/en
Priority to AT88303186Tprioritypatent/ATE77478T1/de
Priority to CA000565411Aprioritypatent/CA1291975C/en
Priority to US07/211,914prioritypatent/US4975807A/en
Publication of JPS644487UpublicationCriticalpatent/JPS644487U/ja
