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 # 91181
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(11) 91181 (51)
E21D 13/02 (2006.01)
(24) 25.06.2014
(21) u201400425 (22) 17.01.2014
(46) 25.06.2014, . 12
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Driban Viktor Oleksandrovych (UA ); Novikov Oleksandr Olehovych (UA ); Shestopalov Ivan Mykolaiovych (UA ); Kosytskyi Ivan Borysovych (UA ); Lovkov Dmytro Hennadiiovych (UA )
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METHOD FOR PROTECTION OF WORKING
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