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经营范围
发明名称
Hauling scraper
摘要
申请公布号
US2445260(A)
申请公布日期
1948.07.13
申请号
US19440545473
申请日期
1944.07.18
申请人
LEN O. BIRD
发明人
BRIMHALL KIRK L.
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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