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经营范围
发明名称
Potentiometer
摘要
申请公布号
US3027530(A)
申请公布日期
1962.03.27
申请号
US19590815721
申请日期
1959.05.25
申请人
SHEA JOHN F
发明人
SHEA JOHN F.
分类号
H01C10/20
主分类号
H01C10/20
代理机构
代理人
主权项
地址
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