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发明名称
Earth moving apparatus
摘要
申请公布号
US2678741(A)
申请公布日期
1954.05.18
申请号
US19500185841
申请日期
1950.09.20
申请人
PILCH JOHN S
发明人
PILCH JOHN S.
分类号
E02F3/32;E02F3/42
主分类号
E02F3/32
代理机构
代理人
主权项
地址
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