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发明名称
Variable resistance element
摘要
申请公布号
US2023603(A)
申请公布日期
1935.12.10
申请号
US19310524849
申请日期
1931.03.24
申请人
CHICAGO TELEPHONE SUPPLY COMPANY
发明人
LODGE EDMUND GILBERT
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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