EP0251671A3
(en )
1989-07-05
Method and apparatus for determining changes in length of a well logging cable
GB8907991D0
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1989-05-24
Method and apparatus for loading explosives into boreholes
ZA88413B
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1988-07-06
Method of excavation and apparatus therefor
DE3362403D1
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1986-04-10
Method and apparatus for earth drilling
PL304798A1
(en )
1995-03-06
Mining apparatus and method of mining in underground mines
GB8924083D0
(en )
1989-12-13
Rock drilling apparatus and method
ZA837482B
(en )
1985-02-27
Method and apparatus for fracturing of rock
GB2131063B
(en )
1985-07-24
Method of and apparatus for retaining earth formations
PL263809A1
(en )
1988-09-15
Method of filling underground voids in salt mines and apparatus therefor
DE3663055D1
(en )
1989-06-01
Apparatus and method for determining the orientation of fractures in a geological formation
GB2124278B
(en )
1985-11-06
Earth drilling apparatus and method
ZA835245B
(en )
1984-08-29
Earth drilling apparatus and method
GB2134630B
(en )
1986-10-15
Apparatus and method of blasting rocks
PL243999A1
(en )
1985-04-09
Method of filling and sealing workings in mines and apparatus therefor
PL251532A1
(en )
1986-07-15
Method of and apparatus for mining filled longwalls
PL272961A1
(en )
1989-12-11
Method of filling underground voids in particular abandoned mine workings
GB2152558B
(en )
1986-12-17
Mining method and apparatus
PL261280A1
(en )
1987-03-23
Method of filling worked-out voids in underground mines
PL138068B2
(en )
1986-08-30
Method of and apparatus for filling underground mine workings
PL265263A1
(en )
1988-11-10
Method of filling workings and pipeline therefor
DE3761030D1
(en )
1989-12-28
Method of and apparatus for providing an underground tunnel
PL253990A2
(en )
1986-04-22
Method of treating and locating in underground mine voids post-flotation wastes
PL267849A3
(en )
1989-05-16
Method of and apparatus for arresting mining cras in inclined mine workings
PL255428A1
(en )
1987-06-15
Apparatus and method for makinf filled waffer blocks
PL274728A1
(en )
1990-03-19
Method of loosening floor rocks in underground mine workings and apparatus therefor