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发明名称
Manufacture of cement
摘要
申请公布号
US2793958(A)
申请公布日期
1957.05.28
申请号
US19550483208
申请日期
1955.01.21
申请人
SUN OIL COMPANY
发明人
HETZEL STANFORD J.
分类号
C04B7/38
主分类号
C04B7/38
代理机构
代理人
主权项
地址
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