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发明名称
Terracing machine
摘要
申请公布号
US2542474(A)
申请公布日期
1951.02.20
申请号
US19490080180
申请日期
1949.03.08
申请人
ROY BURCHETT
发明人
BURCHETT ROY
分类号
E02F5/02;E02F7/00
主分类号
E02F5/02
代理机构
代理人
主权项
地址
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