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US2618753A
(en)
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Electronic switching device
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US2591749A
(en)
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Amplitude modulation system
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US2304135A
(en)
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Modulating system
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GB1174710A
(en)
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A Symmetrical Polyphase Network
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GB583541A
(en)
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Improvements in or relating to pulse modulation systems of electric communication
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GB1329764A
(en)
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Electrical converter station for high voltage
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SE100597C1
(enExample)
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US2457125A
(en)
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Circuit arrangement for producing electrical pulses
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ES368051A1
(es)
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Dispositivo polifasico simetrico.
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GB622711A
(en)
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Improvements in or relating to circuits for the modulation of electrical oscillations
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CH259933A
(de)
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Schaltungsanordnung zum verzögerten Schalten elektrischer Stromkreise.
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DE861865C
(de)
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Sendevorrichtung mit zwei Energiequellen
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ES460450A1
(es)
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Dispositivo local en una red de transferencia de informacionde control.
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GB1405450A
(en)
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Pulse generating circuit
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GB582979A
(en)
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Improvements in or relating to time modulation pulse systems
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SU886195A1
(ru)
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Двухбалансный модул тор
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SU479593A1
(ru)
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Схема включени высокочастотных сварочных устройств
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GB491103A
(en)
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Improvements in or relating to electrical frequency changing apparatus
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GB592259A
(en)
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Improvements in or relating to thermionic amplifiers and modulators
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SU1192014A1
(ru)
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Генератор модулированных колебаний непромышленной частоты в цеп х токов нулевой последовательности
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GB738572A
(en)
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Improvements in and relating to modulators for electric oscillations
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GB756419A
(en)
|
|
Improvements in or relating to electrical switching circuits
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ES264812A1
(es)
|
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Procedimiento de modulaciën en amplitud de senales de baja frecuencia y modulador para la aplicaciën del procedimiento
|
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GB473330A
(en)
|
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Improvements in or relating to carrier signalling systems
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SU96181A1
(ru)
|
|
Способ сложени мощностей высокочастотных генераторов
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