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1.发明授权Cold cathode glow discharge counting and scaling tubes and circuit arrangements therefor 失效冷阴极辉光放电计数和缩放管及其电路布置
公开(公告)号：US2878419A
公开(公告)日：1959-03-17
申请号：US50137655
申请日：1955-04-14
Applicant: PHILIPS CORP
CPC classification number: H03K29/00 , H01J17/48 , H01J2893/007
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