GB1552336A
(en )
1979-09-12
Grade cutting machine
GB1553987A
(en )
1979-10-17
Rotary cutter for a road planer
JPS51117101A
(en )
1976-10-15
Rotary rock bit
GB1514080A
(en )
1978-06-14
Machine tool cutting bit
MX144205A
(en )
1981-09-10
IMPROVEMENTS IN ROCK CUTTING MACHINE
GB1552029A
(en )
1979-09-05
Machine tool especially boring or milling machine
ZM10975A1
(en )
1976-04-21
Improvements in or relating to disc cutting units for use on rock boring machines
ZA723776B
(en )
1974-01-30
Disc cutting unit for use on rock boring machines
JPS5272302A
(en )
1977-06-16
Rock drill
HU173727B
(en )
1979-07-28
Boring cutter
GB2047774B
(en )
1983-02-02
Machine for cutting rocks in underground works
AU504497B2
(en )
1979-10-18
Coal cutting machine
ZA761136B
(en )
1977-02-23
Improvements in or relating to drills
ZM1176A1
(en )
1977-08-22
Roller cutters for drill bit assemblies
MX144204A
(en )
1981-09-10
IMPROVEMENTS IN ROCK CUTTING MACHINE
ZA781550B
(en )
1979-01-31
Machine for cutting into rock
ZA743063B
(en )
1975-12-31
Improvements in or relating to disc cutters for rock boring machines
ZM6175A1
(en )
1976-02-23
Improvements in or relating to disc cutters for rock boring machines
ZA781000B
(en )
1979-02-28
Improvements in rock milling cutters
AU490642B2
(en )
1976-11-18
Improvements in or relating to disc cutters for rock boring machines
ZM11374A1
(en )
1975-06-23
Improvements in or relating to disc cutters for rock boring machines
ZA752836B
(en )
1976-08-25
Improvements in or relating to rock cutting machines
JPS5216401A
(en )
1977-02-07
Diamond bit for semiisurface set
AU490122B2
(en )
1977-01-27
Improvements in or relating to disc cutting units for use on rock boring machines
CH607779A5
(en )
1978-10-31
Rock drill