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公开(公告)号：US3452151A
公开(公告)日：1969-06-24
申请号：US3452151D
申请日：1965-07-06
Applicant: IBM
Inventor： HARBOUR WILMER PAUL JR , HORLANDER JAMES F FRANK J
CPC classification number: H04L1/20
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公开(公告)号：CA777391A
公开(公告)日：1968-01-30
申请号：CA777391D
Applicant: IBM
Inventor： HARBOUR WILMER P JR , HORLANDER JAMES F FRANK J
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