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ANVIC Open Company
Site exists since june 2007
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Data for the comparative testing of prototypes modernization rock bits 244.5 OK-PRT SH2.33UN1-UM-UBS1 (version 1,0% UBS), manufactured under U.S. patent number 7195086 and serial bits 244,5 OK-PRT SH2.33 UN - 1M, construction Gormash, ...
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ABOUT HOLDING COMPARATIVE TESTS AT OJSC “POLTAVA MINING AND BENEFICIATION PLANT” OF TESTED ROLLING CUTTER BITS 244.5 OK-ПВГ

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THEORY OF ROLLER BIT AND ITS USE IN U.S. PATENT NUMBER 7195086
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