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发明名称
Bar screen scraper
摘要
申请公布号
US2128346(A)
申请公布日期
1938.08.30
申请号
US19340740159
申请日期
1934.08.16
申请人
THE JEFFREY MANUFACTURING COMPANY
发明人
BRIGGS ROBERT E.
分类号
E02B8/02
主分类号
E02B8/02
代理机构
代理人
主权项
地址
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