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发明名称
Electromagnetic device
摘要
申请公布号
US2391277(A)
申请公布日期
1945.12.18
申请号
US19420441761
申请日期
1942.05.05
申请人
WARD LEONARD ELECTRIC COMPANY
发明人
STAPLETON GEORGE M.
分类号
H01H50/20
主分类号
H01H50/20
代理机构
代理人
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地址
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