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发明名称
Rheostat
摘要
申请公布号
US2343425(A)
申请公布日期
1944.03.07
申请号
US19420444384
申请日期
1942.05.25
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
SMITH HOWARD H.
分类号
H01C10/38
主分类号
H01C10/38
代理机构
代理人
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地址
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