US2608621A
(en )
1952-08-26
Magnetic record detector
US2102409A
(en )
1937-12-14
Electrical-measuring instrument
US4446741A
(en )
1984-05-08
Vibration transducer
GB543716A
(en )
1942-03-10
Improvements in magnetic structures employing permanent magnets
US1920764A
(en )
1933-08-01
nickle
GB588496A
(en )
1947-05-22
Improvements in or relating to gas analyzers
JP3014319B2
(ja )
2000-02-28
磁石対向型永久磁石回路
US2303413A
(en )
1942-12-01
Seismometer
US3868082A
(en )
1975-02-25
Device in a microtome for damping of vibrations
GB469938A
(enrdf_load_stackoverflow )
US2272766A
(en )
1942-02-10
Magnetizing arrangement
GB539817A
(en )
1941-09-25
Improvements in or relating to direction indicating instruments
US2272767A
(en )
1942-02-10
Direct current ammeter and voltmeter
GB441908A
(enrdf_load_stackoverflow )
1900-01-01
US2889520A
(en )
1959-06-02
Moving magnet meter movement
US4276511A
(en )
1981-06-30
Magnetic systems for long scale electrical meter with multiple side coil sensing
GB1008735A
(en )
1965-11-03
Improvements relating to electrical devices for producing a controlled and reversibleforce or movement in a linear direction
GB392072A
(enrdf_load_stackoverflow )
1900-01-01
GB191019093A
(en )
1911-04-06
Improvements in Electrical Measuring Instruments.
SU575143A1
(ru )
1977-10-05
Электродинамический возбудитель колебаний
US2272748A
(en )
1942-02-10
Induction meter
US1751411A
(en )
1930-03-18
Commutator-type direct-current watthour meter
JPH07294363A
(ja )
1995-11-10
遠心式釣合い試験機における振動検出器
GB400651A
(enrdf_load_stackoverflow )
US2929994A
(en )
1960-03-22
Moving coil electrical instrument