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 Bausch & LombfiledCriticalBausch & Lomb
Priority to IN1017DE1992priorityCriticalpatent/IN186331B/en
Publication of IN186331BpublicationCriticalpatent/IN186331B/en