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经营范围
发明名称
Stable mixtures
摘要
申请公布号
US3345302(A)
申请公布日期
1967.10.03
申请号
US19650473195
申请日期
1965.07.19
申请人
PHILADELPHIA QUARTZ COMPANY
发明人
NETTING DAVID I.;WELDES HELMUT H.
分类号
C01B33/143;C02F1/72;C04B20/10;C04B28/26
主分类号
C01B33/143
代理机构
代理人
主权项
地址
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