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Method of examining ground in massif
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Spool holder for processing light-sensitive films
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Centrifuge for making glass fibre
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Method of geothechnical examination of ground in massif
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Automatic device for feeding air into air-hydraulic dome
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Flue
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Device for automatic location of faults in electric power line
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Water heater
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Combined heating and hot-water supply system
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Extensible boom
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Energy-active building
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