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1933-08-01
nickle
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1990-08-28
Magnetic actuator
GB239636A
(cg-RX-API-DMAC7.html )
GB212648A
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1924-03-14
Improvements in sound emitting apparatus, such as telephone receivers
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1945-11-20
Electrical measuring instrument
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(en )
1954-12-14
Calibratable electrical instrument
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(en )
1950-07-25
Moving coil electrical instrument
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1950-07-04
Moving coil instrument with mag
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1914-08-04
Telephone.
GB841214A
(en )
1960-07-13
Improvements relating to electromagnetic relays
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1958-12-23
Instrument moving-coil assemblies
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1944-08-08
Electromagnetic device
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1906-11-13
Electrical measuring instrument.
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1958-12-23
Electrically actuated contactor
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(en )
1951-09-04
Coil system for measuring instru
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1971-06-08
Balanced magnetic transducer
GB629182A
(cg-RX-API-DMAC7.html )
GB298768A
(cg-RX-API-DMAC7.html )
CN121476646A
(zh )
2026-02-06
一种小型石英挠性加速度计力矩器及小型石英挠性加速度计
GB191203454A
(en )
1913-01-30
Improvements in Electrical Measuring and Signalling Instruments of the Moving Coil Type.
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(en )
1957-12-17
Polarised electromagnetic relays and like devices
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(en )
1952-03-11
Permanent magnet core meter
JPS5844376Y2
(ja )
1983-10-07
リニア・メ−タ
JPS6312341B2
(cg-RX-API-DMAC7.html )
1988-03-18
GB900105A
(cg-RX-API-DMAC7.html )