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发明名称
Trench digging machine
摘要
申请公布号
US2403367(A)
申请公布日期
1946.07.02
申请号
US19430489969
申请日期
1943.06.07
申请人
CLIFFORD HOWARD ARTHUR
发明人
HOWARD ARTHUR CLIFFORD
分类号
E02F3/18;E02F3/20;E02F5/02;E02F5/14
主分类号
E02F3/18
代理机构
代理人
主权项
地址
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