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公开(公告)号:US2326445A
公开(公告)日:1943-08-10
申请号:US38970641
申请日:1941-04-22
Applicant: BELL TELEPHONE LABOR INC
Inventor: EAGON LLOYD L , BURTON MCKIM
IPC: H04M3/523
CPC classification number: H04M3/523
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公开(公告)号:US2258980A
公开(公告)日:1941-10-14
申请号:US33025440
申请日:1940-04-18
Applicant: BELL TELEPHONE LABOR INC
Inventor: EAGON LLOYD L , NEW YORK JAMES B MCKIM
IPC: H04M3/12
CPC classification number: H04M3/12
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公开(公告)号:US2242640A
公开(公告)日:1941-05-20
申请号:US30254039
申请日:1939-11-02
Applicant: BELL TELEPHONE LABOR INC
Inventor: BELLOWS BRIAN C , EAGON LLOYD L
IPC: H04M15/08
CPC classification number: H04M15/08
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