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经营范围
发明名称
Viscosimeter
摘要
申请公布号
US2574973(A)
申请公布日期
1951.11.13
申请号
US19500168330
申请日期
1950.06.15
申请人
HUGHES DONALD A
发明人
HUGHES DONALD A.
分类号
G01N11/14
主分类号
G01N11/14
代理机构
代理人
主权项
地址
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