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发明名称
Concentration recorder
摘要
申请公布号
US2350001(A)
申请公布日期
1944.05.30
申请号
US19410409174
申请日期
1941.09.02
申请人
THE INSTITUTE OF PAPER CHEMISTRY
发明人
AKKER JOHANNES A. VAN DEN
分类号
G01N21/33
主分类号
G01N21/33
代理机构
代理人
主权项
地址
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