GB2142998B
(en )
1986-11-12
Method of anchoring bolts in rock or concrete
ZA849431B
(en )
1985-07-31
Mobile mining machine and method
JPS56136901A
(en )
1981-10-26
Steel powder mixture and method
DE3573750D1
(en )
1989-11-23
Structural elements of compressed concrete, and apparatus for making them
GB8605861D0
(en )
1986-04-16
Tunnel lining in concrete
GB2194551A
(en )
1988-03-09
Wear-resistant steel and method for making it
PL240519A1
(en )
1984-08-13
Method of making mine lining,in particular that of steel and concrete,yeldable one
PL250422A1
(en )
1985-08-13
Method of operation of open-flame tunnel kiln and open-flame tunnel kiln
PL256103A1
(en )
1987-07-27
Hydraulic mining method and apparatus
GB2152558B
(en )
1986-12-17
Mining method and apparatus
PL249361A2
(en )
1985-08-27
Method of obtaining aggregate and brekstone in an underground mine
PL248564A1
(en )
1986-01-14
Method of providing fire-safe zones in underground mine workings
PL241601A2
(en )
1984-02-27
Method of limiting displacements of rocks in mine workings from beneath of rocks and clamping the lining of such workings
HUT36760A
(en )
1985-10-28
New explosives and method for making thereof
PL255100A1
(en )
1987-04-06
Method of mending damages in concrete and masonry mine linings and means therefor
ZA841429B
(en )
1984-11-28
Continuous mining method and means therefor
PL248420A1
(en )
1986-01-14
Steel refining additive,method of obtaining it and steel refining method
PL250354A1
(en )
1986-05-20
Method of determining risk of sqealers and rock outburst in salt mines
PL247954A1
(en )
1985-12-03
Method of lining mine excavations in particular shaft inlets
PL132047B2
(en )
1985-01-31
Method of degassing of mine water,especially in mines and apparatus therefor
EP0119873A3
(en )
1985-04-10
Method and apparatus for the demolition of building constructions in restricted areas
PL241732A2
(en )
1984-03-12
Method of actively extingushing fire in particular in mine workings
PL280610A1
(en )
1991-01-28
Method of making repairs of gallery lining,in particular masonry lining of tunnels
PL246063A1
(en )
1985-08-13
Mine winning loader and method of its movement
IL68783A0
(en )
1983-09-30
Constructional block and concrete roof including same