GB694411A
(en )
1953-07-22
Electronic switches
GB565785A
(en )
1944-11-28
Improvements in or relating to electric signalling systems
GB665819A
(en )
1952-01-30
Improvements in or relating to gaseous electric discharge devices and circuits therefor
US2591749A
(en )
1952-04-08
Amplitude modulation system
US2304135A
(en )
1942-12-08
Modulating system
GB583541A
(en )
1946-12-20
Improvements in or relating to pulse modulation systems of electric communication
ES368130A1
(es )
1971-05-01
Una red polifasica simetrica.
SE100597C1
(enrdf_load_stackoverflow )
1940-01-01
US2457125A
(en )
1948-12-28
Circuit arrangement for producing electrical pulses
GB537731A
(en )
1941-07-03
Modulating systems for electric wave signalling
ES368051A1
(es )
1971-05-01
Dispositivo polifasico simetrico.
GB622711A
(en )
1949-05-05
Improvements in or relating to circuits for the modulation of electrical oscillations
US2962669A
(en )
1960-11-29
Modulator of the on/off type
ES460450A1
(es )
1978-05-01
Dispositivo local en una red de transferencia de informacionde control.
GB582979A
(en )
1946-12-04
Improvements in or relating to time modulation pulse systems
AT346959B
(de )
1978-12-11
System zur automatischen wiederzuschaltung der leistungsschalter von gestoerten hochspannungsfreileitungen in sternpunktge- erdeten hoechstspannungsnetzen
SU886195A1
(ru )
1981-11-30
Двухбалансный модул тор
GB491103A
(en )
1938-08-26
Improvements in or relating to electrical frequency changing apparatus
SU1192014A1
(ru )
1985-11-15
Генератор модулированных колебаний непромышленной частоты в цеп х токов нулевой последовательности
GB756419A
(en )
1956-09-05
Improvements in or relating to electrical switching circuits
ES264812A1
(es )
1962-06-16
Procedimiento de modulaciën en amplitud de senales de baja frecuencia y modulador para la aplicaciën del procedimiento
GB473330A
(en )
1937-10-06
Improvements in or relating to carrier signalling systems
SU96181A1
(ru )
1952-11-30
Способ сложени мощностей высокочастотных генераторов
GB465019A
(en )
1937-04-29
Improvements in or relating to modulator and demodulator networks, for carrier current signalling and the like
JPS53112769A
(en )
1978-10-02
Electrostatic capacity type displacement converter