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公开(公告)号:US2576097A
公开(公告)日:1951-11-27
申请号:US70484046
申请日:1946-10-22
Applicant: INT STANDARD ELECTRIC CORP
Inventor: HARRY BRAY FREDERICK , RONALD BROWN LESLIE , SYDNEY RIDLER DESMOND
IPC: H04Q3/00
CPC classification number: H04Q3/00
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公开(公告)号:US2570279A
公开(公告)日:1951-10-09
申请号:US8578949
申请日:1949-04-06
Applicant: INT STANDARD ELECTRIC CORP
Inventor: SYDNEY RIDLER DESMOND , RONALD BROWN LESLIE
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公开(公告)号:US2502415A
公开(公告)日:1950-04-04
申请号:US54178644
申请日:1944-06-23
Applicant: INT STANDARD ELECTRIC CORP
Inventor: HARRY BRAY FREDERICK , RONALD BROWN LESLIE
IPC: H04Q3/00
CPC classification number: H04Q3/00
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4.Conversion from direct current to double voice frequency impulsing 失效
Title translation: 从直流到双音频脉冲的转换公开(公告)号:US2626996A
公开(公告)日:1953-01-27
申请号:US624748
申请日:1948-02-04
Applicant: INT STANDARD ELECTRIC CORP
Inventor: RONALD BROWN LESLIE
CPC classification number: H04Q1/4465
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公开(公告)号:US2549769A
公开(公告)日:1951-04-24
申请号:US56161844
申请日:1944-11-02
Applicant: INT STANDARD ELECTRIC CORP
Inventor: HARRY BRAY FREDERICK , RONALD BROWN LESLIE
IPC: H03K23/82
CPC classification number: H03K23/82
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6.Electronic signal regenerator for translating alternating current impulses to direct current impulses 失效
Title translation: 用于将交流脉冲转换成直流脉冲的电子信号再生器公开(公告)号:US2510062A
公开(公告)日:1950-06-06
申请号:US57511845
申请日:1945-01-29
Applicant: INT STANDARD ELECTRIC CORP
Inventor: HARRY BRAY FREDERICK , RONALD BROWN LESLIE
IPC: H04Q1/446
CPC classification number: H04Q1/4465
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