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(en )
1951-02-13
Amplitude channelizer
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(en )
1976-07-20
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(en )
1942-06-30
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1988-03-29
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1974-07-17
Chroma key circuit
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1980-07-23
Ac amplifier circuits
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1965-06-01
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2003-04-15
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Echo pulse detection circuit
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(en )
1982-04-13
Loran-C signal processor
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(en )
1971-08-31
Single core solid-state compass
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(en )
1952-01-09
Improvements in thermionic valve circuits
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1966-09-06
Demodulation system
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1991-07-09
異なった動作電圧にて作動される2つの電子回路間のインターフェース
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Modulation conversion system
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Direction-finding system
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1942-07-28
Direction finding system
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Radio direction finder
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Improvements in or relating to character recognition systems
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Radio detection system
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1946-07-23
Improvements in visual indicators for distinguishing between two signals of rectangular wave form particularly for radio blind approach systems