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经营范围
发明名称
Gypsum concrete
摘要
申请公布号
US1813452(A)
申请公布日期
1931.07.07
申请号
US19270221610
申请日期
1927.09.23
申请人
UNITED STATES GYPSUM CO.
发明人
KING GEORGE D.;GOUGH FRED J.
分类号
C04B11/00
主分类号
C04B11/00
代理机构
代理人
主权项
地址
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