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发明名称
Variable resistance device
摘要
申请公布号
US3255425(A)
申请公布日期
1966.06.07
申请号
US19610126966
申请日期
1961.07.26
申请人
HOLT HARDWOOD COMPANY
发明人
WITT CARLTON P. DE;WITT DONALD S. DE
分类号
G01R1/20
主分类号
G01R1/20
代理机构
代理人
主权项
地址
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