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公开(公告)号：US3308977A
公开(公告)日：1967-03-14
申请号：US49247265
申请日：1965-10-04
Applicant: IBM
Inventor： COCHRAN THOMAS J , DONATO NATALE J , ELRICK DAVID K , FICKER WALTER W
IPC: H05K13/02
CPC classification number: H05K13/021
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