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公开(公告)号：US3466547A
公开(公告)日：1969-09-09
申请号：US3466547D
申请日：1967-04-18
Applicant: BELL TELEPHONE LABOR INC
Inventor： FLANAGAN JAMES L , GOLDEN ROGER M , SCHROEDER MANFRED R
CPC classification number: H04B7/015
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