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SU1274053A1
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Device for protection of mobile electric reception unit in a.c.network when occuring hazard voltage between case of electric reception unit and earth
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Device for fault protection of equipment in three-phase network
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Device for protecting equipment from faults of three-phase circuit
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Apparatus for protective turning-off of consumers in three-phase ac network
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SU922700A1
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Rebundancy dc supply system
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Stabilized dc voltage source
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Stabilized dc voltage source
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Device for protecting movable electric receiver in ac network at occurence of hazardous voltage across electric receiver case and ground
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Dc voltage stabilizer
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Redundancy system for supplying direct current users along several parallel channels
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Stabilized dc voltage source
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System for dc supply to a plurality of users
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SU589606A1
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Dc voltage stabilizer
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SU690462A1
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Dc voltage power supply source
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