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1.发明授权Method for making circuit connections to internal layers of a multilayer circuit card and circuit card produced thereby 失效电路连接到由多层电路卡和由此产生的电路卡的内层的方法
公开(公告)号：US3243498A
公开(公告)日：1966-03-29
申请号：US42096964
申请日：1964-12-24
Applicant: IBM
Inventor： ALLEN LOWELL G , HOPEWELL JUNCTION , KARL HINCK , PAULSEN ROBERT C
CPC classification number: H05K3/429 , H05K1/0287 , H05K1/0298 , H05K1/115 , H05K2201/09827 , H05K2201/09845 , H05K2201/09945 , H05K2203/0207 , H05K2203/1476
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公开(公告)号：US3024981A
公开(公告)日：1962-03-13
申请号：US78055558
申请日：1958-12-15
Applicant: IBM
Inventor： ALLEN LOWELL G
CPC classification number: G06K7/14
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