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公开(公告)号:US3428388A
公开(公告)日:1969-02-18
申请号:US3428388D
申请日:1965-09-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: KUEBLER NORMAN A , PAO YOH-HAN , ROBIN MELVIN B
CPC classification number: G02B5/3066
公开(公告)号:US3428388A
公开(公告)日:1969-02-18
申请号:US3428388D
申请日:1965-09-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: KUEBLER NORMAN A , PAO YOH-HAN , ROBIN MELVIN B
CPC classification number: G02B5/3066