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经营范围
发明名称
Digging machine
摘要
申请公布号
US2622351(A)
申请公布日期
1952.12.23
申请号
US19490126281
申请日期
1949.11.09
申请人
WALTERS KING W
发明人
WALTERS KING W.
分类号
E02F3/18;E02F5/02
主分类号
E02F3/18
代理机构
代理人
主权项
地址
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