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公开(公告)号:US2671264A
公开(公告)日:1954-03-09
申请号:US28976852
申请日:1952-05-24
申请人: RCA CORP
发明人: LEOPOLD PESSEL
CPC分类号: H05K3/3468 , B23K3/0684 , H05K2203/0776 , Y10S29/046 , Y10S428/939 , Y10T29/49142 , Y10T29/49885 , Y10T428/12396 , Y10T428/12431 , Y10T428/12569