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发明名称
Inductive device
摘要
申请公布号
US1897040(A)
申请公布日期
1933.02.14
申请号
US19320597479
申请日期
1932.03.08
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
CHRISTOPHER ARTHUR J.
分类号
H04M1/02
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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