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发明名称
Ditch cleaning and terracing machine
摘要
申请公布号
US2271105(A)
申请公布日期
1942.01.27
申请号
US19400356895
申请日期
1940.09.16
申请人
STEWART CHARLES V
发明人
STEWART CHARLES V.
分类号
A01B31/00
主分类号
A01B31/00
代理机构
代理人
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