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 claimed from GB868621578Aexternal-prioritypatent/GB8621578D0/en
Application filed by H L Bishop David, Yong Kang CfiledCriticalH L Bishop David
Priority to IN387/MAS/89ApriorityCriticalpatent/IN170044B/en
Publication of IN170044BpublicationCriticalpatent/IN170044B/en
