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发明名称
Road surface treating machine
摘要
申请公布号
US2571876(A)
申请公布日期
1951.10.16
申请号
US19460677623
申请日期
1946.06.18
申请人
HELTZEL CARL J
发明人
HELTZEL CARL J.
分类号
E01C19/43
主分类号
E01C19/43
代理机构
代理人
主权项
地址
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