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经营范围
发明名称
Concrete troweling machine and attachment therefor
摘要
申请公布号
US2621568(A)
申请公布日期
1952.12.16
申请号
US19460698760
申请日期
1946.09.23
申请人
FLETCHER HORACE G
发明人
FLETCHER HORACE G.
分类号
E04F21/24
主分类号
E04F21/24
代理机构
代理人
主权项
地址
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