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发明名称
(A) ;CRYSTALLINE MODIFIED SILICA AND MANUFACTURE
摘要
申请公布号
JPS63123805(U)
申请公布日期
1988.08.11
申请号
JP19870014439U
申请日期
1987.02.03
申请人
发明人
分类号
F15B15/14;(IPC1-7):F15B15/14
主分类号
F15B15/14
代理机构
代理人
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