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发明名称
PRODUCTION OF BLACK SILICA GRAIN
摘要
申请公布号
JPH05116928(A)
申请公布日期
1993.05.14
申请号
JP19910277962
申请日期
1991.10.24
申请人
TOKUYAMA SODA CO LTD
发明人
TAGA GENJI;NORITAKE MASAKI;TANIZAKI SHIGEKI
分类号
C01B33/12;G02F1/13
主分类号
C01B33/12
代理机构
代理人
主权项
地址
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