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Turboprop power plant with offset rotors and aircraft alternating jet and screw thrusts
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Compensation for reactive moment of rotor
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Screw propulsor
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Method of vehicle changeover from wheels to wheel-chain running gear and device to transform propulsors
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Tire with extending studs
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Tape-pipe method of extinguishing forest fires with transforming dismountable links
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Continuous drill and blast method to produce minerals in spiral entries by non-filling devices
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Engine
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Recovery method of minerals
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Recovery method of minerals
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Railroad
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Engine
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Internal heat exchange engine with conversion of heat energy of gases into mechanical gas pressure
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Device for angular compaction
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