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发明名称
Earth tamper
摘要
申请公布号
US2226182(A)
申请公布日期
1940.12.24
申请号
US19380185453
申请日期
1938.01.17
申请人
ROSS MATTHEW S
发明人
ROSS MATTHEW S.
分类号
E02D3/026
主分类号
E02D3/026
代理机构
代理人
主权项
地址
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