SU1737378A1
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Device for localizing defects of power transformer switching device
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Device for locating fault on cable line and device thereof
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Device for hydroponic growing of plants
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Arrangement for cultivating plants in hydroponics
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SU1488900A1
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Portable grounding for installation on concrete towers with pin-type insulator
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SU1418455A1
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Arrangement for precluding birds landing on power line support
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SU1474566A1
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Device for burning defective cable insulation
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Apparatus for determining power line overlapped insulator string
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SU1069047A1
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High-voltage network
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SU953163A1
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Arrangement for preventing birds settling onto power line
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SU871343A1
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Device for remote signalling along electrical networks
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