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发明名称
Trackway scraper
摘要
申请公布号
US2840930(A)
申请公布日期
1958.07.01
申请号
US19560572857
申请日期
1956.03.21
申请人
UNITED STATES STEEL CORPORATION
发明人
MUNDELL JAMES M.;JR. JOHN PAVLOVICH,
分类号
E01H8/00
主分类号
E01H8/00
代理机构
代理人
主权项
地址
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