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发明名称
Excavating apparatus
摘要
申请公布号
US1929397(A)
申请公布日期
1933.10.03
申请号
US19310558850
申请日期
1931.08.18
申请人
CHARLES KLINE;MILTON DAVIDSON;ELLWOOD LAWRENCE
发明人
DAVIDSON CHARLES A.
分类号
E02F9/02;E02F9/10;E02F9/12
主分类号
E02F9/02
代理机构
代理人
主权项
地址
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