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经营范围
发明名称
Electrical discharge device
摘要
申请公布号
US1943848(A)
申请公布日期
1934.01.16
申请号
US19300490648
申请日期
1930.10.23
申请人
NE-ARGA CORPORATION
发明人
SPAETH CHARLES
分类号
H01J61/28
主分类号
H01J61/28
代理机构
代理人
主权项
地址
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