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发明名称
Cement dispensing device
摘要
申请公布号
US2940298(A)
申请公布日期
1960.06.14
申请号
US19560587980
申请日期
1956.05.29
申请人
DAVID JOSEPH
发明人
JOSEPH DAVID
分类号
E04G21/20
主分类号
E04G21/20
代理机构
代理人
主权项
地址
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