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FR579885A
(en)
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Improvements to alternating current electromagnets
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AT99347B
(en)
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Switch for high voltage alternating current.
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CH125311A
(en)
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Tap switch for high voltage transformers.
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CH101502A
(en)
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Electric switch.
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FR564650A
(en)
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Electric switch
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FR577678A
(en)
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Electric switch
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FR553415A
(en)
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Maximum current switch
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AT98686B
(en)
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Pendulum drive for electric clocks.
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FR566674A
(en)
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Current breaker
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DK34451C
(en)
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Electrical Switch.
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DK35874C
(en)
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Electric Barbell Switch.
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FR568360A
(en)
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Electrical switches
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FR27763E
(en)
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Electric switch
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FI9799A
(en)
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Current motor
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FR580378A
(en)
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Magnetic switch
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AT98123B
(en)
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Circuit arrangement for post office central switch.
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ES84315A1
(en)
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A high voltage electrical insulator.
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FR569592A
(en)
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High voltage alternating current switch
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ES87608A1
(en)
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Improvements in the switches for electric current.
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DK33631C
(en)
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Electric Time Circuit Breaker.
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ES87182A1
(en)
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A switch for electrical currents.
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FR591106A
(en)
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Time switch
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FR566087A
(en)
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Switch
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FR563024A
(en)
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Switch
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DK34054C
(en)
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Electric fuse.
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