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RU

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2 006 884

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C1

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IPC

(21) (22)

Application

4888926/25, 1990-12-10

(22)

Actual filing date

1990-12-10

(45)

Published

1994-01-30

(72)

Inventor

Kurlenja M.V.Kulakov G.I.Markov V.A.Jakovitskaja G.E.

(73)

Holder

Institut Gornogo Dela So Ran

DEVICE FOR RECORDING ELECTROMAGNETIC RADIATION CAUSED BY ROCK FRACTURE Russian patent published in 1994 - IPC

Abstract RU 2006884 C1

FIELD: mining art. SUBSTANCE: device has toroidal winding, shield surrounding winding with bell, and varying measurement gap. EFFECT: provision for checking destruction of rock mass sections when its strain-and-stress state changes. 2 dwg

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RU 2 006 884 C1

Authors

Kurlenja M.V.

Kulakov G.I.

Markov V.A.

Jakovitskaja G.E.

Dates

1994-01-30—Published

1990-12-10—Filed

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