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PL48652B1
(enExample)
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US3187127A
(en)
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Magnetic reed proximity switch
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ATE191583T1
(de)
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Elektronische schaltmagnetansteuerung zum einschalten und halten eines schützes
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US3168269A
(en)
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Track instruments
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US3397348A
(en)
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Proximity current detector
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US3569880A
(en)
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Magnetically operated current sensor
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US3341813A
(en)
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Magnetic sensor device
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US4745383A
(en)
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Magnetic proximity switch
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US1301949A
(en)
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Signal.
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US2362570A
(en)
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Operating device for impulse-controlled instruments
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ATE117461T1
(de)
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Auslösesystem für einen elektrischen schalter.
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SU1170526A1
(ru)
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Термомагнитный переключатель
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US2890308A
(en)
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General purpose electric relay
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US1599516A
(en)
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Magnet
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SU1690020A1
(ru)
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Высоковольтное герконовое реле
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US1092283A
(en)
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Relay.
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US2988635A
(en)
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Device for operating the points of electrical toy or model railways, using permanent magnets
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CN111243466A
(zh)
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电梯广告投影装置
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US1484349A
(en)
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Railway safe-running device
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US2587513A
(en)
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Electric horn
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US634388A
(en)
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Railway-signal.
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US933369A
(en)
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Electric alarm-signal.
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US1862773A
(en)
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Railway signaling flasher
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US168058A
(en)
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Improvement in electric railroad-signals |
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US725195A
(en)
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Circuit-closing device.
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