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2001-09-24
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2003-05-07
Detecting underground objects
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2002-02-25
Driving dog for chain-type scraper conveyors in particular those used in underground mines
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2005-03-30
Surface-assisted continuous underground mining
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2002-09-11
Borehole seismic tool
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2003-05-28
Seals for down-hole drills
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1998-06-08
Short-wall mining machine for underground coal mines
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1998-11-05
Underground mining drill rig
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1999-05-12
Method for electrokinetic downhole logging
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1998-10-08
Winning apparatus for underground ore mining operations
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2001-03-12
Underground mining method useful in getting solid mineral deposits
GB9917601D0
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1999-09-29
Down-hole tool
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2000-06-19
Method of filling deep shafts, in particular those of underground mines
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2000-09-25
Method of mining mineral deposits
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2004-02-16
Plug for bore-holes in mining operations
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2000-11-06
Rock mining method in particular for winning mineral raw materials
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2001-07-16
Method of mining the deposits of useful minerals
PL325693A1
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1999-10-11
Method of mining residues from a bed of useful mineral, in particular hard coal one
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1998-09-07
An underground mining barrier
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1998-08-27
Method and apparatus for mining inclined mineral deposits
PL318728A1
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1998-08-31
Method of mining underground ore deposits
PL332805A1
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2000-11-06
Method of restoring normal service conditions in underground mine working
PL322095A1
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1998-03-02
Method of getting coal in mines characterised by difficult geological conditions
PL332019A1
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2000-09-25
Method of performing horizontal surveys using radar technique in coal beds of deep underground mines
PL330686A1
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2000-07-03
Method of thickening hydraulic filling in abandoned underground mine workings