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发明名称
Apparatus for weight classification
摘要
申请公布号
US2661091(A)
申请公布日期
1953.12.01
申请号
US19510207636
申请日期
1951.01.24
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
MALONEY NORVIN G.
分类号
B07C5/20
主分类号
B07C5/20
代理机构
代理人
主权项
地址
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