| 申请人 |
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LTD., JOHANNESBURG, TRANSVAAL, ZA |
发明人 |
JONES, BARBARA LYNN, BRACKNELL, RG12 3TX, GB;NAM, TOM LEONG, BEZ VALLEY, TRANSVAAL, ZA;ARAIKUM, SHAWN, DURBAN, NATAL, ZA;KEDDY, REX JAMES, RIVONIA, TRANSVAAL, ZA |
