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发明名称
Street sweeper
摘要
申请公布号
US2199703(A)
申请公布日期
1940.05.07
申请号
US19380233353
申请日期
1938.10.05
申请人
HOUGH FRANK G
发明人
HOUGH FRANK G.
分类号
E01H1/04
主分类号
E01H1/04
代理机构
代理人
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