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经营范围
发明名称
PRODUCTION OF SILICA POWDER
摘要
申请公布号
JPH03187913(A)
申请公布日期
1991.08.15
申请号
JP19890325471
申请日期
1989.12.15
申请人
SHIN ETSU CHEM CO LTD
发明人
OGIWARA TSUTOMU;SHIMIZU TAKAAKI
分类号
C01B33/18
主分类号
C01B33/18
代理机构
代理人
主权项
地址
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