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发明名称
Excavating machine
摘要
申请公布号
US2305566(A)
申请公布日期
1942.12.15
申请号
US19420427802
申请日期
1942.01.22
申请人
WESTON ELMER M;WESTON HAROLD R
发明人
WESTON ELMER M.;WESTON HAROLD R.
分类号
E02F3/30;E02F3/32;E02F3/42
主分类号
E02F3/30
代理机构
代理人
主权项
地址
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