US1927346A
(en )
1933-09-19
Electromagnetic device
GB1410301A
(en )
1975-10-15
Electro-magnetic thickness gauge
US1920764A
(en )
1933-08-01
nickle
US2284893A
(en )
1942-06-02
Electrical measuring instrument
GB565017A
(de )
US2272766A
(en )
1942-02-10
Magnetizing arrangement
US2110680A
(en )
1938-03-08
Electrical instrument
GB456988A
(de )
SE310280B
(de )
1969-04-21
GB907132A
(de )
GB1511779A
(en )
1978-05-24
Moving magnet current-measuring instrument
GB563442A
(de )
GB658125A
(de )
GB191209410A
(en )
1912-11-28
Improvements in or relating to Galvanometers.
US1224707A
(en )
1917-05-01
Speedometer.
JPS5830228Y2
(ja )
1983-07-02
積算電力計用磁気制動装置
GB392072A
(de )
1900-01-01
JPS56114307A
(en )
1981-09-08
Magnetic circuit
GB561795A
(en )
1944-06-05
Improvements relating to the rotors of electricity meters, small motors and the like
GB718669A
(en )
1954-11-17
Improvements relating to a method of and apparatus for testing non-magnetic material
GB191203454A
(en )
1913-01-30
Improvements in Electrical Measuring and Signalling Instruments of the Moving Coil Type.
GB863617A
(de )
GB400651A
(de )
GB838056A
(de )
GB190321027A
(en )
1904-09-29
Improvements in and relating to Electricity Meters.