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发明名称
WORKING FACET OF GEMSTONE
摘要
申请公布号
GB8826912(D0)
申请公布日期
1988.12.21
申请号
GB19880026912
申请日期
1988.11.17
申请人
GERSAN ETAB
发明人
分类号
B24B9/16;(IPC1-7):B24B9/16
主分类号
B24B9/16
代理机构
代理人
主权项
地址
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