GB8701249D0
(en )
1987-02-25
Mine haulage method
GB2180576B
(en )
1988-07-27
Improvements in mineral mining installations
PL253270A1
(en )
1986-11-18
Method of detecting crump hazard conditions in underground mine workings
ZA862166B
(en )
1986-11-26
Mining apparatus for thin mineral seams
GB8628125D0
(en )
1986-12-31
Reducing ignition risk in mine workings
PL251521A1
(en )
1986-07-15
Method of indicating and recording presence of workers at predetermined places in underground mine workings
GB2152558B
(en )
1986-12-17
Mining method and apparatus
PL138068B2
(en )
1986-08-30
Method of and apparatus for filling underground mine workings
PL256103A1
(en )
1987-07-27
Hydraulic mining method and apparatus
PL252355A1
(en )
1985-12-03
Underground coal mining method
PL248056A2
(en )
1985-04-09
Method of filling mined out workings in mines
PL256238A1
(en )
1988-04-14
Method of sealing mine workings in particular dog headings
PL273861A1
(en )
1990-01-22
Method of and arrangement of workings for mining minerals
PL248564A1
(en )
1986-01-14
Method of providing fire-safe zones in underground mine workings
GB8518211D0
(en )
1985-08-29
Control & support of strata underground in mines
BG40593A1
(en )
1987-01-15
Method for underground stoping of oreless minerals
PL257853A1
(en )
1988-02-04
Method of mining useful minerals through bore-holes and apparatus therefor
PL266955A1
(en )
1989-01-23
Method of mining rocky massives in mine workings
PL252637A1
(en )
1986-10-07
Method of forecasing risks of crumps in particular in coal mines
PL240880A1
(en )
1984-09-10
Method of handling mine-run in mine workings of large inclination
PL140323B2
(en )
1987-04-30
Method of reducing fire hazard in underground mine workings with simultaneous speeding up of roof rock reconsolidation
ZA87381B
(en )
1987-12-30
Mine haulage method and apparatus
ZA872544B
(en )
1987-11-25
Safety device and method for underground mining
PL246623A2
(en )
1985-01-16
Method of reducing a risk of crumps in underground mines
PL263099A1
(en )
1988-09-01
Method and device for suspending leads in underground mining excavations