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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Application filed by Ishihara Sangyo Kaishaa LtdfiledCriticalIshihara Sangyo Kaishaa Ltd
Priority to IN707CA1991priorityCriticalpatent/IN178438B/en
Priority to IN188CA1996prioritypatent/IN178920B/en
Publication of IN178438BpublicationCriticalpatent/IN178438B/en