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公开(公告)号：US3308528A
公开(公告)日：1967-03-14
申请号：US32192863
申请日：1963-11-06
Applicant: IBM
Inventor： BULLARD ROBERT L , HASBROUCK ROBERT A , SCHLEMMER PHILIP S , THUN RUDOLF E
IPC: H01C17/26
CPC classification number: H01C17/267 , H01C17/265 , Y10T29/49082 , Y10T29/49099
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