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经营范围
发明名称
Improvements in or relating to potentiometers
摘要
申请公布号
GB801034(A)
申请公布日期
1958.09.03
申请号
GB19560009581
申请日期
1956.03.27
申请人
ENGELHARD INDUSTRIES, INC.
发明人
分类号
H01B1/02
主分类号
H01B1/02
代理机构
代理人
主权项
地址
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