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发明名称
High lift ripper
摘要
申请公布号
US2093125(A)
申请公布日期
1937.09.14
申请号
US19350026816
申请日期
1935.06.15
申请人
DAVENPORT RALPH M
发明人
DAVENPORT RALPH M.
分类号
E01C23/12
主分类号
E01C23/12
代理机构
代理人
主权项
地址
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