ZA776057B
(en )
1978-05-30
Improvements in or relating to cleansing
GB2000040B
(en )
1982-04-21
Improvements in or relating to filters
PT65322B
(en )
1978-01-05
Improvements in or relating to inflatable literafts
ZA776704B
(en )
1978-08-30
Improvements in or relating to screening
ZA774475B
(en )
1978-06-28
Improvements in or relating to line advance mechanisms
ZA77650B
(en )
1977-12-28
Improvements in or relating to filters
ZA765993B
(en )
1978-08-30
Improvement in or relating to cell filters
ZA772387B
(en )
1978-03-29
Improvements in or relating to filter presses
GB2089780B
(en )
1984-06-20
Improvements in or relating to water filters
ZA774778B
(en )
1979-03-28
Improvements in or relating to glycerokinases
ZA773455B
(en )
1979-01-31
Improvements in or relating to porous membranes
ZA776880B
(en )
1978-09-27
Improvements in or relating to cleansing
ZA774779B
(en )
1978-06-28
Improvements in or relating to tea
ZA773458B
(en )
1978-05-30
Improvements in or relating to tube filters
ZA774654B
(en )
1978-06-28
Improvements in or relating to dartboards
ZA773051B
(en )
1979-04-25
Improvements in or relating to sieves
ZA771407B
(en )
1978-02-22
Improvements in or relating to relays
ZA773819B
(en )
1978-05-30
Improvements in or relating to granular-bed filters
ZA764908B
(en )
1977-10-26
Improvements in or relating to water filter units
ZA761808B
(en )
1977-09-28
Improvements in or relating to gas filters
ZA764648B
(en )
1977-09-28
Improvements in or relating to mats
ZA776573B
(en )
1979-06-27
Improvements in or relating to water filters
ZA773020B
(en )
1978-05-30
Improvements in or relating to filters
JPS52109747A
(en )
1977-09-14
Water filter
MY8000175A
(en )
1980-12-31
Improvements in or relating to continuous filtration apparatus