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公开(公告)号:US3538268A
公开(公告)日:1970-11-03
申请号:US3538268D
申请日:1968-05-09
Applicant: AUTOMATIC ELECT LAB
Inventor: COCHRAN ALFRED S
IPC: H04M3/24
CPC classification number: H04M3/24
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2.Apparatus to select and identify one of a possible plurality of terminals calling for service in a communication switching system 失效
Title translation: 用于选择和识别在通信交换系统中呼叫服务的可能的多个终端中的一个的设备公开(公告)号:US3413421A
公开(公告)日:1968-11-26
申请号:US46358765
申请日:1965-06-14
Applicant: AUTOMATIC ELECT LAB
Inventor: COCHRAN ALFRED S , SIKORSKI FRANK B
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公开(公告)号:US3536902A
公开(公告)日:1970-10-27
申请号:US3536902D
申请日:1969-04-15
Applicant: AUTOMATIC ELECT LAB
Inventor: COCHRAN ALFRED S , WEGE JOHN R VANDE
CPC classification number: H04Q3/42
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4.Telephone exchange with interworking of switching units of different types 失效
Title translation: 电话交换机与不同类型切换单元的交互公开(公告)号:US3466401A
公开(公告)日:1969-09-09
申请号:US3466401D
申请日:1966-03-29
Applicant: AUTOMATIC ELECT LAB
Inventor: COCHRAN ALFRED S , SIKORSKI FRANK B
CPC classification number: H04Q3/0012
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