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发明名称
Electric device
摘要
申请公布号
US1896813(A)
申请公布日期
1933.02.07
申请号
US19280328270
申请日期
1928.12.24
申请人
EVERETT EDWARD A
发明人
EVERETT EDWARD A.
分类号
H01T4/12
主分类号
H01T4/12
代理机构
代理人
主权项
地址
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