ZA731402B
(en )
1973-11-28
Rock cutter assembly
AU5824273A
(en )
1975-01-30
Rock boring cutter
GB1388503A
(en )
1975-03-26
Rock milling cutters
CS181726B2
(en )
1978-03-31
Cutting tool with rotary cutting bit
ZA723776B
(en )
1974-01-30
Disc cutting unit for use on rock boring machines
ZA731030B
(en )
1974-03-27
Earth boring machine with tandem thrust cylinders
CA934774A
(en )
1973-10-02
Earth boring machine
ZA737428B
(en )
1974-08-28
Continuous rotation rock drill
ZA737797B
(en )
1974-08-28
Raise boring head and rolling cutter arrangement therefor
ZA731450B
(en )
1973-11-28
Rotary cutter
CA980759A
(en )
1975-12-30
Raise boring machine
ZA724119B
(en )
1973-03-28
Rotary cutter for earth boring bits
ZA722739B
(en )
1973-01-31
Rotary cutter for excavation especially for use with raise boring and tunnel boring machines
ZA722737B
(en )
1973-01-31
Rotary cutter for excavation especially for use with raise boring and tunnel boring machines
AU463518B2
(en )
1975-07-31
Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines
CA961869A
(en )
1975-01-28
Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines
CA961868A
(en )
1975-01-28
Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines
AU465343B2
(en )
1975-09-09
Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines
AU5520373A
(en )
1974-11-07
Rock drills
ZA735362B
(en )
1974-07-31
Improvements in or relating to mining,rock breaking,excavating and like machines and implements for use therein
GB1384333A
(en )
1975-02-19
Mining and excavating machines
ZA703787B
(en )
1971-08-25
Improvements in rotary driven rock cutting equipment
CA897728A
(en )
1972-04-11
Hard rock tunneling machine
ZA723775B
(en )
1974-01-30
Cutting unit for use on rock boring machines
ZA728678B
(en )
1973-08-29
Improvements in rock drilling machines