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发明名称
Electrical apparatus
摘要
申请公布号
US2171704(A)
申请公布日期
1939.09.05
申请号
US19370168309
申请日期
1937.10.11
申请人
KOEHLER JAMES F
发明人
KOEHLER JAMES F.
分类号
H02K25/00
主分类号
H02K25/00
代理机构
代理人
主权项
地址
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