ZA786750B
(en )
1979-11-28
Improvements in or relating to tubewells
ZA782048B
(en )
1979-03-28
Improvements in or relating to vehicles
GB2000040B
(en )
1982-04-21
Improvements in or relating to filters
GB2000097B
(en )
1982-01-06
Improvements in or relating to travelling hoists
ZA77650B
(en )
1977-12-28
Improvements in or relating to filters
ZA786956B
(en )
1980-03-26
Improvements in or relating to clotheslines
ZA783697B
(en )
1979-06-27
Improvements in or relating to elevator arrangements
ZA782795B
(en )
1979-05-30
Improvements in or relating to tyres
ZA774778B
(en )
1979-03-28
Improvements in or relating to glycerokinases
HK13381A
(en )
1981-04-16
Improvements in or relating to tools
ZA782942B
(en )
1979-05-30
Improvements in or relating to class manufacture
ZA772286B
(en )
1978-10-25
Improvements in or relating to ovens
ZA776766B
(en )
1978-10-25
Improvements in or relating to bumpers
ZA774654B
(en )
1978-06-28
Improvements in or relating to dartboards
DE2861017D1
(en )
1981-11-26
Improvements in or relating to decollators
ZA774386B
(en )
1979-01-31
Improvements in or relating to snatch blocks
ZA773819B
(en )
1978-05-30
Improvements in or relating to granular-bed filters
ZA773027B
(en )
1978-04-26
Improvements in or relating to casting
ZA783389B
(en )
1979-06-27
Improvements in or relating to conveyors
ZA762385B
(en )
1977-09-28
Improvements in or relating to snatch blocks
ZA776938B
(en )
1979-06-27
Improvements in and relating to snatch blocks
ZA773427B
(en )
1978-09-27
Improvements in or relating to winches
MY8200115A
(en )
1982-12-31
Improvements in or relating to breakwaters
GR65361B
(en )
1980-08-20
Improvements in or relating to small boats
HK31280A
(en )
1980-06-13
Improvements in or relating to toys