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2 077 649

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IPC

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Application

92009865/03, 1992-11-30

(22)

Actual filing date

1992-11-30

(45)

Published

1997-04-20

(72)

Inventor

Konanykhin A.I.Vasil'Kov V.K.Konanykhin V.A.Makarenko M.B.Filippov P.A.Krasnotsvetov L.V.

(73)

Holder

Vostochnyj Nauchno-Issledovatel'Skij Gorno-Rudnyj Institut

DEVICE FOR DRILLING COUPLED BLAST HOLES Russian patent published in 1997 - IPC

Abstract RU 2077649 C1

FIELD: mining, well drilling. SUBSTANCE: drill unit has drill tool, guide member, adaptor connected to drill bit and drill rod, shearing off device, rest ledge and sleeve connected to the guide member through the shearing off unit. EFFECT: higher efficiency. 2 dwg

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RU 2 077 649 C1

Authors

Konanykhin A.I.

Vasil'Kov V.K.

Konanykhin V.A.

Makarenko M.B.

Filippov P.A.

Krasnotsvetov L.V.

Dates

1997-04-20—Published

1992-11-30—Filed

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