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RU1775334C
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Reservoir for oil products
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Pipeline inner surface cleaner
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Method and device for preserving inner surfaces of pipeline
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Storage reservoir for oil and oil products
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Device for metering reagent to pipeline
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Tank for oil products
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Method of preparing paraffin oil to pumping
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Method of oil-and-gas collection
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Method of dehydrating reservoir emulsions and oil slime
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Method of conveying hydrocarbon gases by piping
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Road-construction method
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Pipe hoisting and aligning device
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Pipeline shutoff device
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Device for electric treatment of viscous oil
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Platform
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Device for injecting deemulsifier into oil emulsion stream
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Device for cleaning inner surface of pipeline
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SU1725008A1
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Pipeline leakage prevention device
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