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经营范围
发明名称
Road building machine
摘要
申请公布号
US2258205(A)
申请公布日期
1941.10.07
申请号
US19400313010
申请日期
1940.01.08
申请人
HALVORSON PETER B
发明人
HALVORSON PETER B.
分类号
E01C19/48
主分类号
E01C19/48
代理机构
代理人
主权项
地址
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