ZA786750B
(en )
1979-11-28
Improvements in or relating to tubewells
GB2000040B
(en )
1982-04-21
Improvements in or relating to filters
ZA776057B
(en )
1978-05-30
Improvements in or relating to cleansing
ZA77650B
(en )
1977-12-28
Improvements in or relating to filters
ZA786014B
(en )
1979-10-31
Improvements in or relating to filtration apparatus
ZA786956B
(en )
1980-03-26
Improvements in or relating to clotheslines
ZA772387B
(en )
1978-03-29
Improvements in or relating to filter presses
GB2089780B
(en )
1984-06-20
Improvements in or relating to water filters
ZA783660B
(en )
1979-06-27
Improvements in or relating to benoxaprofen
MY8200261A
(en )
1982-12-31
Improvements in or relating to bridge structure
ZA782942B
(en )
1979-05-30
Improvements in or relating to class manufacture
ZA776880B
(en )
1978-09-27
Improvements in or relating to cleansing
ZA773458B
(en )
1978-05-30
Improvements in or relating to tube filters
DE2861017D1
(en )
1981-11-26
Improvements in or relating to decollators
ZA776573B
(en )
1979-06-27
Improvements in or relating to water filters
ZA773819B
(en )
1978-05-30
Improvements in or relating to granular-bed filters
ZA777232B
(en )
1978-11-29
Improvements in or relating to filters
MY8200115A
(en )
1982-12-31
Improvements in or relating to breakwaters
ZA764908B
(en )
1977-10-26
Improvements in or relating to water filter units
GR65361B
(en )
1980-08-20
Improvements in or relating to small boats
ZA775873B
(en )
1979-01-31
Improvements in or relating to water heaters
CA41852S
(en )
1977-03-14
Water filter
ZA773020B
(en )
1978-05-30
Improvements in or relating to filters
ZA777682B
(en )
1978-10-25
Improvements in or relating to boilers
ZA783982B
(en )
1979-09-26
Improvements in or relating to filtering units