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发明名称
Electrical apparatus
摘要
申请公布号
US2314060(A)
申请公布日期
1943.03.16
申请号
US19400361276
申请日期
1940.10.15
申请人
VICTOREEN JOHN A
发明人
VICTOREEN JOHN A.
分类号
H01J19/44
主分类号
H01J19/44
代理机构
代理人
主权项
地址
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