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Publication date
Priority claimed from US07/023,614external-prioritypatent/US5026416A/en
Application filed by American Colloid CofiledCriticalAmerican Colloid Co
Priority to IN161DE1988priorityCriticalpatent/IN173088B/en
Priority claimed from US07/513,092external-prioritypatent/US5034045A/en
Publication of IN173088BpublicationCriticalpatent/IN173088B/en