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Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
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Gorno-Altaisk, SU
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Patent Grant
Powered member for splitting rock and other bodies
Patent number
5,000,517
Issue date
Mar 19, 1991
Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
Jury A. Lebedev
E21 - EARTH DRILLING MINING
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Patent Grant
Device for building up directional force
Patent number
4,871,212
Issue date
Oct 3, 1989
Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
Jury A. Lebedev
E21 - EARTH DRILLING MINING
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Patent Grant
Power unit
Patent number
4,690,460
Issue date
Sep 1, 1987
Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
Jury A. Lebedev
E21 - EARTH DRILLING MINING
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