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公开(公告)号：US3105169A
公开(公告)日：1963-09-24
申请号：US78944559
申请日：1959-01-27
Applicant: BELL TELEPHONE LABOR INC
Inventor： ANDERSON FRITHIOF B , PEARSALL JR SAMUEL H
IPC: H03K3/55
CPC classification number: H03K3/55
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