FR690768A
(en )
1930-09-25
Permanent magnet
DK44227C
(en )
1931-06-15
Main Current Magnet with Magnetic Shunt for Induction Electricity Meters.
FR700357A
(en )
1931-02-27
Non-metallic electrical resistance
AT126942B
(en )
1932-02-25
Main current magnet for induction meters with a magnetic shunt to improve the load curve.
DK44240C
(en )
1931-06-15
Series Magnet for Induction Type Electricity Meters.
CH219698A
(en )
1942-02-28
Magnetic shunt to improve the error curve in induction meters.
FR654746A
(en )
1929-04-10
Current iron with magnetic shunt for induction meters
DK70464C
(en )
1950-01-09
U-shaped anchor iron with magnetic shunt for induction measuring instruments.
ES117130A1
(en )
1930-04-01
A main current electromagnet for induction meters with a magnetic shunt to improve the load curve.
ES95693A2
(en )
1926-05-16
An induction meter for single-phase alternating current.
FR564317A
(en )
1923-12-27
Single-phase current meter
DK34333C
(en )
1925-03-30
Three-phase Induction motor-type AC meter.
DK31426C
(en )
1923-03-19
Electric Induction Coil with Balance Winding.
ES117295A1
(en )
1930-04-01
Improvements in electric induction furnaces without core.
ES115084A1
(en )
1929-11-01
Improvements in electric induction furnaces.
ES102007A1
(en )
1927-06-01
Current coils for AC electric meters.
ES118136A1
(en )
1930-06-16
Permanent magnet, especially for electricity meters.
SU20489A1
(en )
1931-04-30
Electric current bell
FR740143A
(en )
1933-01-21
Tariff alternating current meter
ES90671A1
(en )
1924-11-01
An induction meter for single-phase alternating current.
DK45534C
(en )
1932-04-18
Electrical Induction Relay with two opposing Auxiliary Phase Windings.
FR694649A
(en )
1930-12-05
Laminated inductor poles for dynamos
CA287690A
(en )
1929-03-05
Induction watthour meter
CA287184A
(en )
1929-02-12
Induction watthour meter
DK47381C
(en )
1933-05-29
Electricity meter with drum for measuring the maximum consumption.