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1. (WO1991017225) COATED ABRASIVE ALUMINA PARTICLES, MANUFACTURE AND USE
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
Canada 14.10.19922080598
European Patent Office 29.10.19921991907376Published: 17.02.1993
Granted: 14.09.1994
Norway 30.12.199219924189