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经营范围
发明名称
Improvements in or relating to viscosity meters
摘要
申请公布号
GB839541(A)
申请公布日期
1960.06.29
申请号
GB19550013307
申请日期
1955.05.09
申请人
EBEN ERIC JELPKE
发明人
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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