US1927346A
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1933-09-19
Electromagnetic device
GB1530082A
(en )
1978-10-25
Magnet assembly for a nuclear resonance device
GB907132A
(de )
GB456988A
(de )
US2272766A
(en )
1942-02-10
Magnetizing arrangement
US2430317A
(en )
1947-11-04
Electrical measuring instrument
US2389393A
(en )
1945-11-20
Electrical measuring instrument
US2516740A
(en )
1950-07-25
Moving coil electrical instrument
US4449094A
(en )
1984-05-15
Temperature compensated magnetic damping assembly for induction meters
GB565017A
(de )
US10712405B2
(en )
2020-07-14
External air core flux measurement system for a production magnetizing system
JPS5830228Y2
(ja )
1983-07-02
積算電力計用磁気制動装置
GB190906565A
(en )
1910-03-17
Improvements in and relating to Electric Energy Meters.
GB863617A
(de )
GB392072A
(de )
1900-01-01
GB862420A
(de )
GB959577A
(de )
GB838056A
(de )
GB1072486A
(de )
GB1003143A
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1965-09-02
Improvements in or relating to electrical measuring instruments
GB104180A
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Continuous Current Measuring Apparatus with Iron in the Field of Current.
GB1097591A
(de )
GB629182A
(de )
GB644659A
(de )
GB759928A
(de )