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经营范围
发明名称
PROCESS FOR THE PREPARATION OF OPALIFORM PORCELLANITE
摘要
申请公布号
US5102837(A)
申请公布日期
1992.04.07
申请号
US19900583593
申请日期
1990.09.17
申请人
RESEARCH AND DEVELOPMENT OF NATURAL RESOURCES, LTD.
发明人
BALKANY, ANDRE;STRONGIN, PNINA
分类号
B03B5/04;B03B5/10;B03B5/30;B03B9/00;C01B33/12
主分类号
B03B5/04
代理机构
代理人
主权项
地址
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