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公开(公告)号：US3134052A
公开(公告)日：1964-05-19
申请号：US18849262
申请日：1962-04-18
Applicant: BELL TELEPHONE LABOR INC
Inventor： LE CRONIER RICHARD E , RACKMAN MICHAEL I
IPC: H04L25/49
CPC classification number: H04L25/4917 , Y10T307/858
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公开(公告)号：US3134055A
公开(公告)日：1964-05-19
申请号：US15680061
申请日：1961-12-04
Applicant: BELL TELEPHONE LABOR INC
Inventor： LE CRONIER RICHARD E , RACKMAN MICHAEL I
IPC: H04L25/49
CPC classification number: H04L25/4917 , Y10T307/76
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