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经营范围
发明名称
Energy control arrangement
摘要
申请公布号
US1848220(A)
申请公布日期
1932.03.08
申请号
US19270215593
申请日期
1927.08.26
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
LINDSAY RUSSELL H.
分类号
H04B3/06
主分类号
H04B3/06
代理机构
代理人
主权项
地址
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