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2 014 455

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C1

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IPC

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Application

4922827/03, 1991-03-29

(22)

Actual filing date

1991-03-29

(45)

Published

1994-06-15

(72)

Inventor

Ostjukov B.S.Konovalov P.A.Kushnir S.Ja.Nikiforova N.S.Kremnev A.P.

(73)

Holder

Nauchno-Issledovatel'Skij, Proektno-Izyskatel'Skij I Konstruktorsko-Tekhnologicheskij Institut Osnovanij I Podzemnykh Sooruzhenij

DRILL-HOLE HYDRAULIC GIANT FOR MAKING SLITS IN GROUND Russian patent published in 1994 - IPC

Abstract RU 2014455 C1

FIELD: mining industry. SUBSTANCE: giant comprises side and end nozzles rigidly secured to casing which is connected to concentrically-arranged inlet pipes. Revolving nozzles are extensible, provided with link-and-lever rotating mechanism. EFFECT: improved design. 4 dwg

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RU 2 014 455 C1

Authors

Ostjukov B.S.

Konovalov P.A.

Kushnir S.Ja.

Nikiforova N.S.

Kremnev A.P.

Dates

1994-06-15—Published

1991-03-29—Filed

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