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发明名称
Canal and road subgrader
摘要
申请公布号
US2119664(A)
申请公布日期
1938.06.07
申请号
US19350021370
申请日期
1935.05.14
申请人
VINCENT BRESSI;JAHN NICHOLAS F
发明人
BRESSI VINCENT;JAHN NICHOLAS F.
分类号
E02F5/02;E02F7/00
主分类号
E02F5/02
代理机构
代理人
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