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发明名称
HIGH PURITY SILICA AND METHOD FOR PRODUCING HIGH PURITY SILICA
摘要
申请公布号
EP0409167(A3)
申请公布日期
1991.06.26
申请号
EP19900113683
申请日期
1990.07.17
申请人
NKK CORPORATION
发明人
MOCHIZUKI, TADASHI, C/O PATENT & LICENSE DEPT.;IWATA, HIDEO, C/O PATENT & LICENSE DEPT.
分类号
C01B33/193;(IPC1-7):C01B33/193
主分类号
C01B33/193
代理机构
代理人
主权项
地址
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