AT98618B
(en )
1924-11-25
Power factor meter for three-phase current of equal and unequal load
FR557997A
(en )
1923-08-20
Further development of single-phase alternating current electromagnets
DK35013C
(en )
1925-09-14
Converter or Converter unit symmetrically divided power line current.
CH82156A
(en )
1919-09-01
Current limit relay for alternating and direct current
DK32164C
(en )
1923-08-27
Suspension of electrical cables, in particular three-phase cables.
AT139775B
(en )
1934-12-10
Multimeter for current and voltage measurements.
FR546301A
(en )
1922-11-07
Power indicator
FR559148A
(en )
1923-09-10
Tensioner for electric wires and others
FR611574A
(en )
1926-10-01
Improvements in the construction of high voltage electric cables
FR553225A
(en )
1923-05-15
Electric inverter
Randall et al.
1921
Power factor correction
FR566311A
(en )
1924-02-13
Improvements in the construction of rotary electric converters
GR2912B
(en )
1930-09-10
ELECTRIC LAMP FOR EVERY KIND OF VARIABLE AND ALTERNATIVE ELECTRICAL CURRENTS.
ES73293A1
(en )
1920-06-28
Improvements in the transformation of polyphase currents especially for its application to electric furnaces.
FR642587A
(en )
1928-08-31
Rotary converter of electric currents
AT96073B
(en )
1924-02-25
Earthing reactor or voltage converter for high voltages.
GR2336B
(en )
1929-06-15
APPLIANCE FOR PRODUCTION OF HIGH QUALITY AND HIGH QUALITY POWER CURRENTS
ES80366A1
(en )
1922-04-01
Procedure for the execution of nitrogen oxidation in electric furnaces.
FR566945A
(en )
1924-02-22
Pendulum for electric clocks and other applications
FR572761A
(en )
1924-06-12
Improvement in the manufacture of three-core cables for three-phase voltages
FR558632A
(en )
1923-08-30
Improvements in the rectification of alternating currents
FR555811A
(en )
1923-07-06
Electric mixer
FR552836A
(en )
1923-05-08
Polyphase transformer
AT91061B
(en )
1923-01-25
Tension iron for AC and three-phase current measuring devices based on the Ferraris principle.
FR719818A
(en )
1932-02-10
Static transformer from three-phase to two-phase current or vice versa