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Electrical measuring instrument
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1959-02-24
Electrical instrument with a drum indicating dial
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1950-05-23
Moving coil electrical measuring
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1962-09-12
Improvements in differential pressure gauge
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1932-08-25
Apparatus for measuring magnetically the thickness of iron plates and the like
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1986-05-15
Магнитоэлектрический измерительный механизм
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1955-10-19
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1944-09-15
Electrical indicating instruments and scale adjustments therefor
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Магнитный мост посто нного потока
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1928-07-02
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1959-03-18
Apparatus for testing a characteristic of ferromagnetic materials
Bennett
1949
A review of methods for coating-thickness determination
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1958-08-27
Improvements in or relating to multi-range electrical meters
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An improved single-phase watt-hour meter
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Improvements relating to electromagnetic telephone instruments
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An electrical engineering review. Wattmeters
Knight
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A sensitive balance for stability tests on permanent magnets
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1958-07-09
Improvements in electrical indicator instruments
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1960-02-17
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The Measurement of Electric Currents: Electrical Measuring Instruments