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经营范围
发明名称
Carrying scraper
摘要
申请公布号
US2303650(A)
申请公布日期
1942.12.01
申请号
US19410383625
申请日期
1941.03.15
申请人
KAY-BRUNNER STEEL PRODUCTS, INC.
发明人
LOW JOHN J.
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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