PT81474A
(en )
1985-12-01
Cemented carbide body used preferably for rock drilling and mineral cutting
ZA884509B
(en )
1989-03-29
Diamond tools for rock drilling and machining
DE3570901D1
(en )
1989-07-13
Diamond drill bit with varied cutting elements
DE3569957D1
(en )
1989-06-08
Rock drill bit
PL251853A1
(en )
1985-10-22
Arrangement of cutting tools in particular for a coal planer
GB8431633D0
(en )
1985-01-30
Cutting structures for rotary drill bits
DE3573446D1
(en )
1989-11-09
Improvements in or relating to cutting elements for rotary drill bits
AU572729B2
(en )
1988-05-12
Mining machine with breaking tool to control mineral rock size
GB2153773B
(en )
1987-01-28
Improvements in scraper-chain conveyors for use in mineral mining
ZA858049B
(en )
1986-06-25
Cemented carbide body used preferably for rock drilling and mineral cutting
PL247372A1
(en )
1985-11-05
Shaped carbide tip for mining tool bits in particular those of mechanical coal miner cutters
PL247253A1
(en )
1985-10-22
Method of manufacturing mining tool in particular cutters for mechanical coal miners
PL248256A3
(en )
1985-12-17
Method of manufacturing mining tools in particular cutters for mechanical coal miners
PL247250A1
(en )
1985-10-22
Method of manufacturing mining tools in particular cutters for mechanical coal miners
PL248255A3
(en )
1985-12-17
Method of manufacturing mining tools in particular cutters for mechanical coal miners
GB8411083D0
(en )
1984-06-06
Boring type coal/mineral cutting machine
PL257697A1
(en )
1987-10-19
Cutting and crushing type mining head for a longwall coal miner
PL139925B2
(en )
1987-03-31
Production bore-hole boring head in particular for mining sulfur deposits
PL248896A1
(en )
1986-02-11
Mechanical coal miner mining head
PL254907A3
(en )
1987-02-23
Method of regenerating rotary cutting tools of mechanical coal miners
PL271682A1
(en )
1989-10-16
Cutting bit holder for cutting head of mechanical coal miners
PL248792A1
(en )
1986-02-11
Mining head for mechanical coal miners
PL247251A1
(en )
1985-10-22
Mechanical coal miner cutter blade forging
PL257398A1
(en )
1987-09-07
Arrangement of cutters on a mining head of mechanical coal miner of longwall type
PL249615A1
(en )
1986-03-25
Cutting blade for mechanical coal miners