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公开(公告)号:US2787668A
公开(公告)日:1957-04-02
申请号:US32942453
申请日:1953-01-02
Applicant: INT STANDARD ELECTRIC CORP
IPC: H01H67/26
CPC classification number: H01H67/26
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2.Automatic telecommunication system with absent subscriber service 失效
Title translation: 自动电信系统,缺少用户业务公开(公告)号:US2758158A
公开(公告)日:1956-08-07
申请号:US32112652
申请日:1952-11-18
Applicant: INT STANDARD ELECTRIC CORP
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公开(公告)号:US2559642A
公开(公告)日:1951-07-10
申请号:US74270347
申请日:1947-04-19
Applicant: INT STANDARD ELECTRIC CORP
Inventor: JAKOB KRUITHOF , MARINUS JOCHEM
IPC: H01B7/08
CPC classification number: H01B7/083
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公开(公告)号:US2344885A
公开(公告)日:1944-03-21
申请号:US30350439
申请日:1939-11-09
Applicant: INT STANDARD ELECTRIC CORP
Inventor: LADISLAS KOZMA , JAKOB KRUITHOF
IPC: G06F7/46
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公开(公告)号:US2867691A
公开(公告)日:1959-01-06
申请号:US33373853
申请日:1953-01-28
Applicant: INT STANDARD ELECTRIC CORP
Inventor: JAKOB KRUITHOF
IPC: H01H63/20
CPC classification number: H01H63/20
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公开(公告)号:US2640884A
公开(公告)日:1953-06-02
申请号:US1421548
申请日:1948-03-11
Applicant: INT STANDARD ELECTRIC CORP
Inventor: JAKOB KRUITHOF
IPC: H01H67/26
CPC classification number: H01H67/26
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7.Common control circuit for operating switches rearward to calling line 失效
Title translation: 用于向后拨动线路操作开关的通用控制电路公开(公告)号:US2597007A
公开(公告)日:1952-05-20
申请号:US77865247
申请日:1947-10-08
Applicant: INT STANDARD ELECTRIC CORP
Inventor: JAKOB KRUITHOF , LADISLAS KOZMA
IPC: H04Q1/18
CPC classification number: H04Q1/18
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8.Substation circuit for reducing the attenuation of low-frequency signals by means ofparallel condensers 失效
Title translation: 变电站电路,用于通过并联电容器降低低频信号的衰减公开(公告)号:US2562924A
公开(公告)日:1951-08-07
申请号:US76303047
申请日:1947-07-23
Applicant: INT STANDARD ELECTRIC CORP
Inventor: JAKOB KRUITHOF , CHISLAIN NYS LOUIS JACQUES
IPC: H04M1/738
CPC classification number: H04M1/738
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公开(公告)号:US2892134A
公开(公告)日:1959-06-23
申请号:US32169452
申请日:1952-11-20
Applicant: INT STANDARD ELECTRIC CORP
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公开(公告)号:US2740844A
公开(公告)日:1956-04-03
申请号:US28025352
申请日:1952-04-03
Applicant: INT STANDARD ELECTRIC CORP
IPC: H01H67/26
CPC classification number: H01H67/26
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