GB2089869B
(en )
1984-05-16
A mining machine for cutting coal and/or rock
GB2099889B
(en )
1985-01-30
Cowl-like scrubber for a long-wall shearer
DE3270947D1
(en )
1986-06-12
Mining method for deep coal seams
ZA84370B
(en )
1984-08-29
Scraper units for mine conveyor scraper-chain assemblies
GB8319087D0
(en )
1983-08-17
Excavatory machine for coal and mining operations
GB2193988B
(en )
1990-04-25
A shearer loader for underground operation
PL243762A2
(en )
1984-07-30
Mechanized roof supports for mining coal deposits using a hydraulically carried filling material
PL249392A2
(en )
1985-07-02
Mechanized roof supports for mining steep coal deposits
HU179502B
(en )
1982-10-28
Mechanized mining longwall method
PL245041A1
(en )
1985-06-18
Trough for a mine scraper conveyor
GB2172919B
(en )
1988-06-08
Shearer drum for a drum shearer-loader used in underground mining
PL244571A1
(en )
1985-05-21
Mining head for mechanized coal miners
GB2148370B
(en )
1987-03-11
Mine roof support advance rams
PL246050A1
(en )
1985-09-10
Lock for a mine scraper conveyor
DE3275737D1
(en )
1987-04-23
Process for modifying coal tar materials
GB2136040B
(en )
1986-06-11
Pivotal linkage of a mine roof support
PL236000A1
(en )
1983-10-24
Method of mining of thick coal beds using hydraulic filling
PL240933A1
(en )
1984-09-10
Lining for a longwall with filling
PL250348A1
(en )
1985-09-24
Loader in particular for double-arm longwall mechanical coal miner
PL243545A2
(en )
1984-07-02
Mechanized roof support unit for longwall headings
JPS57184190A
(en )
1982-11-12
Sending apparatus for coal mining machine of coal mine in pit
PL268463A1
(en )
1989-05-16
Apparatus for shifting a longwall mining conveyor
PL243381A1
(en )
1985-02-13
Mining gead for mechanical coal miner
PL241782A2
(en )
1983-12-19
Hydraulically liftable floor beam for a mechanized mine roof support
PL269188A1
(en )
1989-06-12
Loader for coal miners