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Linear solenoid device
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Accelerometer
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1950-07-25
Moving coil electrical instrument
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1934-03-27
Measuring instrument
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(cg-RX-API-DMAC7.html )
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1958-12-23
Instrument moving-coil assemblies
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1950-05-23
Moving coil electrical measuring
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Electromagnetic motive device
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1977-06-21
Stereo pick-up with casing serving as common pole piece
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1974-04-09
Electromechanical band-pass filter
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Electrical measuring instrument.
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Frequency meter
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Indicating instrument.
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磁場発生装置
GB392072A
(cg-RX-API-DMAC7.html )
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JPS5830228Y2
(ja )
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積算電力計用磁気制動装置