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US2618753A
(en)
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Electronic switching device
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CA932391A
(en)
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Circuit arrangement for altering current distribution in mesh-operated high voltage direct current transmission networks
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GB565785A
(en)
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Improvements in or relating to electric signalling systems
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US2591749A
(en)
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Amplitude modulation system
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US2304135A
(en)
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Modulating system
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GB583541A
(en)
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Improvements in or relating to pulse modulation systems of electric communication
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GB1329764A
(en)
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Electrical converter station for high voltage
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US2086601A
(en)
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Modulating system
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SE100597C1
(https=)
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US2457125A
(en)
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Circuit arrangement for producing electrical pulses
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ES368051A1
(es)
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Dispositivo polifasico simetrico.
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FR945634A
(fr)
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Dispositif pour limiter les courants excessifs dans les circuits électriques, en particulier dans les réseaux à courants intenses
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US3010079A
(en)
|
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Transistor bridge modulator
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GB622711A
(en)
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Improvements in or relating to circuits for the modulation of electrical oscillations
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US2962669A
(en)
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Modulator of the on/off type
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GB1405450A
(en)
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Pulse generating circuit
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GB582979A
(en)
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Improvements in or relating to time modulation pulse systems
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AT253037B
(de)
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Schaltungsanordnung zur Begrenzung der Kurzschlußleistung, bei Kupplung von Hochspannungsnetzen
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SU886195A1
(ru)
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Двухбалансный модул тор
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US2408299A
(en)
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Selective signaling system
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GB491103A
(en)
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Improvements in or relating to electrical frequency changing apparatus
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GB513661A
(en)
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Improvements in and relating to frequency translating circuits particularly telegraph modulators
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GB738572A
(en)
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Improvements in and relating to modulators for electric oscillations
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GB1395803A
(en)
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Diode phase modulator
|
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GB473330A
(en)
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Improvements in or relating to carrier signalling systems
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