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经营范围
发明名称
Dehydrating gypsum or the like
摘要
申请公布号
US2848211(A)
申请公布日期
1958.08.19
申请号
US19560558046
申请日期
1956.01.09
申请人
CHARLES E. COMPTON
发明人
RUEHLE RICHARD R.
分类号
C04B11/028
主分类号
C04B11/028
代理机构
代理人
主权项
地址
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