GB2194345B
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1991-04-17
A method of determining the existance and location of a substantially horizontal strata boundary in a geological strata
PL304798A1
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1995-03-06
Mining apparatus and method of mining in underground mines
GB8924083D0
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1989-12-13
Rock drilling apparatus and method
GB8912393D0
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1989-07-12
A method of and an arrangement for drilling a hold in a rock
EP0393197A4
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1991-01-02
Method of forming underground passage and tunnel excavator
PL274728A1
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1990-03-19
Method of loosening floor rocks in underground mine workings and apparatus therefor
PL275970A1
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1989-09-04
Machine for and method of continuously disintegrating a rock or the like and taking away disintegrated output for use in mining,earth moving and tunnel driving
ZA892022B
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1989-11-29
Method of evacuating mineral-containing rock mined in longwall-face underground mining,and transportation apparatus to carry out the method
PL273861A1
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1990-01-22
Method of and arrangement of workings for mining minerals
PL267849A3
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1989-05-16
Method of and apparatus for arresting mining cras in inclined mine workings
PL266955A1
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1989-01-23
Method of mining rocky massives in mine workings
PL272961A1
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1989-12-11
Method of filling underground voids in particular abandoned mine workings
PL295235A1
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1994-01-10
Method of and cementing mixture for bonding rocks in mine workings
PL263809A1
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1988-09-15
Method of filling underground voids in salt mines and apparatus therefor
PL294966A1
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1993-12-27
Method of and apparatus for placing coal mine waste rock into abandoned workings
PL291862A1
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1993-04-05
Method of depositing waste in abandoned workings of underground mines and apparatus therefor
PL253990A2
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1986-04-22
Method of treating and locating in underground mine voids post-flotation wastes
PL257853A1
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1988-02-04
Method of mining useful minerals through bore-holes and apparatus therefor
PL257965A1
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1987-11-02
Method of handling materials in mine workings and apparatus therefor
PL240880A1
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1984-09-10
Method of handling mine-run in mine workings of large inclination
GB2233999B
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1993-07-07
An apparatus for making galleries or the like in underground mining operations or the like
PL288321A1
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1992-06-26
Method of and apparatus for monitoring hazards in mine workings
PL270444A1
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1989-08-07
Method of and superssor for redusing noise level in positively ventilated mine workings
PL253270A1
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1986-11-18
Method of detecting crump hazard conditions in underground mine workings
PL284424A1
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1991-08-26
Method of and apparatus for driving inclined mine workings