US2618753A
(en )
1952-11-18
Electronic switching device
GB681330A
(en )
1952-10-22
Electronic switching networks
KR840000983A
(ko )
1984-03-26
Gto스택
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
US2304135A
(en )
1942-12-08
Modulating system
GB583541A
(en )
1946-12-20
Improvements in or relating to pulse modulation systems of electric communication
GB1329764A
(en )
1973-09-12
Electrical converter station for high voltage
SE100597C1
(enExample )
1940-01-01
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
CH259933A
(de )
1949-02-15
Schaltungsanordnung zum verzögerten Schalten elektrischer Stromkreise.
GB536349A
(en )
1941-05-12
Modulating system for carrier transmission and the like
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.
GB1405450A
(en )
1975-09-10
Pulse generating circuit
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
GB592259A
(en )
1947-09-12
Improvements in or relating to thermionic amplifiers and modulators
SU42503A1
(ru )
1935-03-31
Модул ционное устройство
SU1192014A1
(ru )
1985-11-15
Генератор модулированных колебаний непромышленной частоты в цеп х токов нулевой последовательности
GB738572A
(en )
1955-10-19
Improvements in and relating to modulators for electric oscillations
GB756419A
(en )
1956-09-05
Improvements in or relating to electrical switching circuits