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公开(公告)号：US3319060A
公开(公告)日：1967-05-09
申请号：US39515364
申请日：1964-09-09
Applicant: BELL TELEPHONE LABOR INC
Inventor： BARTLEY KEITH D
CPC classification number: H04M1/22 , F21V21/02 , F21Y2103/00 , G09F13/04 , Y10S362/812
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公开(公告)号：US3377080A
公开(公告)日：1968-04-09
申请号：US42703065
申请日：1965-01-21
Applicant: BELL TELEPHONE LABOR INC
Inventor： BARTLEY KEITH D , PRESCOTT ROBERT E
IPC: E04H1/14
CPC classification number: E04H1/14
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公开(公告)号：US3300917A
公开(公告)日：1967-01-31
申请号：US40646864
申请日：1964-10-26
Applicant: BELL TELEPHONE LABOR INC
Inventor： BARTLEY KEITH D , PRESCOTT ROBERT E
IPC: A47B19/04
CPC classification number: A47B19/04
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