US4176335A
(en )
1979-11-27
Electrical conducting apparatus
US2276032A
(en )
1942-03-10
Adjustable reactance transformer
PL91295B1
(fr )
1977-02-28
US3214617A
(en )
1965-10-26
Dynamo-electric machines
ES8404559A1
(es )
1984-04-16
Selector de carga en punto neutro para transformadores electricos escalonados
US3984756A
(en )
1976-10-05
Power source for supplying stabilized current to electrical installations
US2719275A
(en )
1955-09-27
Combination choke and transformer
US2882507A
(en )
1959-04-14
Transformer windings
US1676680A
(en )
1928-07-10
System for the electric transmission of signals along lines for power distribution
US1839764A
(en )
1932-01-05
Electric steam generating system
US3185946A
(en )
1965-05-25
Transformer tap winding
JPS59103317A
(ja )
1984-06-14
大電流三相電路
US2752409A
(en )
1956-06-26
Low voltage connections for electrode furnace
US2836802A
(en )
1958-05-27
Fluid cooled transformers
RU50044U1
(ru )
2005-12-10
Блок катушек индуктивности
US3531686A
(en )
1970-09-29
Lamp ballast circuit for dual voltage supplies
US2451324A
(en )
1948-10-12
Shield for transformers
US2748338A
(en )
1956-05-29
Phase converter
US1532498A
(en )
1925-04-07
Electric-induction water heater
US2797366A
(en )
1957-06-25
Apparatus for operating gaseous discharge devices
DE3665804D1
(en )
1989-10-26
Thermo-inductive generator for the production of a warm fluid
GB730104A
(en )
1955-05-18
Inductors for induction heating
FR2254160A1
(en )
1975-07-04
Coupling device for carrier systems - esp. for systems using insulated overhead earthing conductors in HV transmission lines
US645014A
(en )
1900-03-06
System of electrical distribution.
US1309814A
(en )
1919-07-15
schweitzer