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发明名称
Sifter
摘要
申请公布号
US2720311(A)
申请公布日期
1955.10.11
申请号
US19530382750
申请日期
1953.09.28
申请人
THE HARSHAW CHEMICAL COMPANY
发明人
BENJAMIN HARRY
分类号
G01N15/02
主分类号
G01N15/02
代理机构
代理人
主权项
地址
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