DE3565707D1
(en )
1988-11-24
Compositions and methods for reducing the permeability of underground strata
PL245257A2
(en )
1984-10-22
Method of protection of mine dog headings and tunnels
YU43073B
(en )
1989-02-28
Selfmoving tunnel lining for crossings between tunnel head and tunnels
GB2152558B
(en )
1986-12-17
Mining method and apparatus
PL256103A1
(en )
1987-07-27
Hydraulic mining method and apparatus
PL256238A1
(en )
1988-04-14
Method of sealing mine workings in particular dog headings
PL240257A1
(en )
1984-07-30
Method of protecting galleries and workings
PL242360A1
(en )
1984-12-17
Method of protecting underground dog headings in particular longwall extraction galleries
PL240630A2
(en )
1983-12-19
Apparatus for determination of cross-section of mine heading and tunnels
PL241043A2
(en )
1984-01-16
Mine air dedusting method and water courtain therefor
PL237807A2
(en )
1983-06-20
Method of preventing crumps in underground mines
PL241732A2
(en )
1984-03-12
Method of actively extingushing fire in particular in mine workings
PL249360A2
(en )
1985-07-02
Method of protecting roof and axial breaches in longwall headings
PL240880A1
(en )
1984-09-10
Method of handling mine-run in mine workings of large inclination
PL246048A1
(en )
1985-08-13
Apparatus for protection of mining cars against selfrolling down in inclined headings
PL247451A1
(en )
1985-11-05
Method of and head for mining rocky minerals
PL251521A1
(en )
1986-07-15
Method of indicating and recording presence of workers at predetermined places in underground mine workings
PL252749A1
(en )
1986-10-07
Method of reducing fire risks in underground headings or workings
PL236461A1
(en )
1983-12-19
Method of building mine wagons
PL250354A1
(en )
1986-05-20
Method of determining risk of sqealers and rock outburst in salt mines
PL273861A1
(en )
1990-01-22
Method of and arrangement of workings for mining minerals
PL247218A1
(en )
1985-10-22
Method of lining dog heading crossing and lining frame for protecting crossings of dog headings
GB8408327D0
(en )
1984-05-10
Escape device for mines and tunnels
PL254434A1
(en )
1987-01-26
Method of protection of fasteners of arched supports of dog headings
PL247210A1
(en )
1985-10-22
Method of ventilating dog headings and sound-absorbing shield therefor