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公开(公告)号：US3038969A
公开(公告)日：1962-06-12
申请号：US85449659
申请日：1959-11-20
Applicant: ITT
Inventor： PICKERING THOMAS A , KASPER FRANK S , ARSENEAU ROGER E , MAXA RICHARD F
IPC: H04Q11/04
CPC classification number: H04Q11/04
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