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发明名称
Mercury arc
摘要
申请公布号
US1977290(A)
申请公布日期
1934.10.16
申请号
US19330654082
申请日期
1933.01.28
申请人
HEINTZ & KAUFMAN
发明人
SCOFIELD PHILIP F.
分类号
H01J13/42
主分类号
H01J13/42
代理机构
代理人
主权项
地址
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