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发明名称
Earth moving device
摘要
申请公布号
US1846592(A)
申请公布日期
1932.02.23
申请号
US19290348416
申请日期
1929.03.20
申请人
HARRISON RAYMOND L
发明人
HARRISON RAYMOND L.
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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