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经营范围
发明名称
Potentiometer instrument
摘要
申请公布号
US1931223(A)
申请公布日期
1933.10.17
申请号
US19320590842
申请日期
1932.02.04
申请人
THE BROWN INSTRUMENT COMPANY
发明人
HARRISON THOMAS R.
分类号
G01R13/00
主分类号
G01R13/00
代理机构
代理人
主权项
地址
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