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发明名称
Form and method of casting a concrete roof
摘要
申请公布号
US2798279(A)
申请公布日期
1957.07.09
申请号
US19550491867
申请日期
1955.03.03
申请人
THOMAS DONALD K
发明人
THOMAS DONALD K.
分类号
E04B7/02;E04G11/36
主分类号
E04B7/02
代理机构
代理人
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地址
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