ZA753780B
(en )
1976-04-28
Continuous tunnel boring machine and method
ZA773311B
(en )
1979-01-31
Method and apparatus for supporting a mine roof
ZA774652B
(en )
1978-06-28
Method of mine backfilling and material therefor
ZA751532B
(en )
1976-02-25
Hydraulic drill in particular a rock drill
ZA78429B
(en )
1979-01-31
Mine roof support for a mobile drilling machine
GB1543656A
(en )
1979-04-04
Hydraulic mining apparatus and method
GB8903547D0
(en )
1989-04-05
High pressure water assisted mining and tunnelling machine
AU518645B2
(en )
1981-10-15
Mine roof drilling and bolting machine
ZA775286B
(en )
1978-07-26
A mine prop
AU512292B2
(en )
1980-10-02
Mine roof drilling and bolting machine
AU516565B2
(en )
1981-06-11
Roof drilling and bolting machine
YU39810B
(en )
1985-04-30
Compact rolling device of a propelling machine for singlerail hinged railways in mining industry
ZA785167B
(en )
1979-08-29
A hydraulic mine prop
GB1540889A
(en )
1979-02-21
Drilling holes in pressurized pipes
CS182335B1
(en )
1978-04-28
A pressure support of drilling machine for drilling upwards bores in mines and for built in roof bolts
GB1542000A
(en )
1979-03-14
Method of securing a rock bolt
AU3937078A
(en )
1980-03-06
Maintaining a required pressure in a hydrostatic bearing
JPS52145887A
(en )
1977-12-05
Fulllface pressure boring method and apparatus therefor
GB1542898A
(en )
1979-03-28
Hydraulic mining apparatus and method
SU579421A2
(ru )
1977-11-05
Устройство дл измерени рассто ни в очистных забо х гидрошахт
AU2490077A
(en )
1978-11-09
Mine roof drilling apparatus
JPS52150702A
(en )
1977-12-14
Machine for pit excavation and mining face work
AU505042B2
(en )
1979-11-08
Anchoring and moving a mining machine
JPS5328803A
(en )
1978-03-17
Hydraulic rams
ZA766838B
(en )
1977-10-26
Drilling holes in pressurized pipes