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发明名称
Grader and attachment therefor
摘要
申请公布号
US2241666(A)
申请公布日期
1941.05.13
申请号
US19390304064
申请日期
1939.11.13
申请人
HUETER JR OSCAR M
发明人
JR. OSCAR M. HUETER,
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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