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经营范围
发明名称
Refractory composition
摘要
申请公布号
US2272039(A)
申请公布日期
1942.02.03
申请号
US19380220268
申请日期
1938.07.20
申请人
CITIES SERVICE OIL COMPANY
发明人
MORGAN JOHN D.
分类号
C04B28/34
主分类号
C04B28/34
代理机构
代理人
主权项
地址
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