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发明名称
Method of and apparatus for making dry packaged concrete
摘要
申请公布号
US2904942(A)
申请公布日期
1959.09.22
申请号
US19560617375
申请日期
1956.10.22
申请人
A. AND T. DEVELOPMENT CORPORATION
发明人
AVRIL ARTHUR C.
分类号
B28C9/00
主分类号
B28C9/00
代理机构
代理人
主权项
地址
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