ZA742501B
(en )
1976-02-25
Improvements in or relating to accelerometers
HU173970B
(en )
1979-10-28
Cutting tip
ZA753272B
(en )
1977-01-26
Improvements relating to pyridobenzodiazepinones
ZA747725B
(en )
1976-07-28
Improvements in or relating to diamonds
ZA75451B
(en )
1976-01-28
Improvements in or relating to phosphorescent materials
ZA751884B
(en )
1976-02-25
Improvements in or relating to tennis-rackets
ZA746058B
(en )
1976-04-28
Improvements in or relating to the retreading of tyress
ZA751294B
(en )
1976-01-28
Improvements relating to smoking materials
HK65984A
(en )
1984-08-31
Improvements in or relating to pipe cutters
ZA751175B
(en )
1976-01-28
Improvements in or relating to drill bits
ZA747049B
(en )
1976-05-26
Improvements in or relating to the cutting of slots in rock
MY7700238A
(en )
1977-12-31
Improvements in or relating to explosive compositions
ZA745551B
(en )
1975-12-31
Improvements in or relating to pneutmatic rock drills
ZA745552B
(en )
1975-12-31
Improvements in or relating to rock drills
ZA745550B
(en )
1975-12-31
Improvements in or relating to rock drills
ZA746110B
(en )
1975-12-31
Improvements in or relating to hosereels
ZA755449B
(en )
1977-04-27
Improvements in or relating to sectional members
ZA744813B
(en )
1976-03-31
Improvements in or relating to drilling machines
ZA741735B
(en )
1975-03-26
Improvements in or relating to tools
AU487048B2
(en )
1977-02-03
Improvements in or relating to drilling machines
ZA7497B
(en )
1976-02-25
Improvements in rock cutting equipment
ZA718425B
(en )
1973-06-27
Improvemnts in or relating to rock cutters
ZA744721B
(en )
1976-06-30
Improvements in or relating to pit-props
ZA747800B
(en )
1976-03-31
Improvements in or relating to mining equipment
AU479870B2
(en )
1975-11-20
Improvements in or relating to anchors