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发明名称
WORKING A FACET OF A SMALL GEMSTONE
摘要
申请公布号
GB2249742(B)
申请公布日期
1992.09.16
申请号
GB19910026812
申请日期
1991.12.18
申请人
THE * DIAMOND TRADING COMPANY LIMITED
发明人
MARK CHRISTOPHER * HANNA;ERIC JOZEF GENTIL * BLONDEEL
分类号
B24B9/16
主分类号
B24B9/16
代理机构
代理人
主权项
地址
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