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发明名称
Means and method of excavating and transporting earthy materials
摘要
申请公布号
US1956738(A)
申请公布日期
1934.05.01
申请号
US19310549002
申请日期
1931.07.06
申请人
SAMUEL WEIMER RAYMOND
发明人
WEIMER RAYMOND SAMUEL
分类号
E02F3/18
主分类号
E02F3/18
代理机构
代理人
主权项
地址
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