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经营范围
发明名称
Process for coloring diamonds
摘要
申请公布号
US2945793(A)
申请公布日期
1960.07.19
申请号
US19580732775
申请日期
1958.04.28
申请人
ARTHUR DUGDALE RONALD
发明人
DUGDALE RONALD ARTHUR
分类号
A44C17/00;B01J19/08;C01B31/06;C04B41/00
主分类号
A44C17/00
代理机构
代理人
主权项
地址
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