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发明名称
Water injection device for concrete mixers
摘要
申请公布号
US2534445(A)
申请公布日期
1950.12.19
申请号
US19490070174
申请日期
1949.01.11
申请人
CHAIN BELT COMPANY
发明人
HILKEMEIER LOUIS G.
分类号
B28C7/12
主分类号
B28C7/12
代理机构
代理人
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