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发明名称
Earth surfacing machine
摘要
申请公布号
US2255061(A)
申请公布日期
1941.09.09
申请号
US19400338651
申请日期
1940.06.03
申请人
FRITZ JOHNSON
发明人
JOHNSON FRITZ
分类号
E02F3/76
主分类号
E02F3/76
代理机构
代理人
主权项
地址
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