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公开(公告)号：US2880557A
公开(公告)日：1959-04-07
申请号：US53188655
申请日：1955-09-01
Applicant: GEN MOTORS CORP
Inventor： TODD HAROLD E , SYLVANUS MEYER , GAITHER RAYMOND A , MEEK FRANKLIN H , WANTTAJA GLENN E
IPC: H01K3/00
CPC classification number: H01K3/00
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