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发明名称
Control device
摘要
申请公布号
US2138210(A)
申请公布日期
1938.11.29
申请号
US19340711644
申请日期
1934.02.17
申请人
CHICAGO TELEPHONE SUPPLY CO.
发明人
SCHELLENGER NEWTON C.
分类号
H01C1/14;H01C10/32
主分类号
H01C1/14
代理机构
代理人
主权项
地址
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