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公开(公告)号：US3470453A
公开(公告)日：1969-09-30
申请号：US3470453D
申请日：1967-05-11
Applicant: BELL TELEPHONE LABOR INC
Inventor： FLEURY PAUL A V , PATEL CHANDRA K N , SLUSHER RICHART E , YAFET YAKO
CPC classification number: H01S3/1086 , H01S3/30
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