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发明名称
Viscometer
摘要
申请公布号
US1894369(A)
申请公布日期
1933.01.17
申请号
US19300418603
申请日期
1930.01.04
申请人
GEORG DUFFING
发明人
DUFFING GEORG
分类号
G01N11/12
主分类号
G01N11/12
代理机构
代理人
主权项
地址
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