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经营范围
发明名称
Machine for cutting grooves of constant depth in pavement
摘要
申请公布号
US3269775(A)
申请公布日期
1966.08.30
申请号
US19630286032
申请日期
1963.06.06
申请人
CONCUT, INC.
发明人
HATCHER CECIL W.
分类号
E01C23/088
主分类号
E01C23/088
代理机构
代理人
主权项
地址
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