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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Publication date
Application filed by Irving Chung-Chi ChenfiledCriticalIrving Chung-Chi Chen
Priority to IN777CA1993priorityCriticalpatent/IN180970B/en
Priority to IN1623CA1997prioritypatent/IN184527B/en
Publication of IN180970BpublicationCriticalpatent/IN180970B/en