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UA111132C2
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Device for gas abrasion testing of materials
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UA110559C2
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Scratch-hardness tester
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UA108050C2
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Electromagnetic rolling pump
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UA102958C2
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Threaded joint of drill string with indicator of control of technical state
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UA102957C2
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Device for prevention of open outbursts at well manifestations
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UA101589C2
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Method for arresting growth of short fatigue cracks of surfaces of pipelines
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UA101775C2
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Testbench for abrasion testing elements of cutting surface of drill tool
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UA103119C2
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Device for finishing antifrictional nonabrasive processing of details surfaces
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UA102036C2
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Drill pump
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UA103529C2
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Method for strengthening drill pipes made of aluminum alloys
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UA101532C2
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Method for prevention of development of crack-like and corrosion defects of surface of pipelines
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UA101410C2
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Automated installation for application of insulating coating to pipeline
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UA98422C2
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Device for finish antifriction nonabrasive processing of inner cylindrical surfaces
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UA103338C2
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Device for control of varying loads at testing sample on fatigue at bend
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UA98732C2
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Device for repair of casing strings
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UA99530C2
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Holder of a rock roller bit
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UA97595C2
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Method for control of wetting of surface of solid body by liquid
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UA99966C2
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Drill bit cutter tooth
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UA99363C2
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Bearing of a roller-cutter drill bit
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UA96853C2
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Method for data transmission and reception
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