ZA776057B
(en )
1978-05-30
Improvements in or relating to cleansing
GB2000040B
(en )
1982-04-21
Improvements in or relating to filters
ZA776704B
(en )
1978-08-30
Improvements in or relating to screening
ZA774475B
(en )
1978-06-28
Improvements in or relating to line advance mechanisms
HK41880A
(en )
1980-08-15
Improvements in or relating to bobbins
ZA77650B
(en )
1977-12-28
Improvements in or relating to filters
HK65979A
(en )
1979-09-21
Improvements in or relating to cutters
ZA765993B
(en )
1978-08-30
Improvement in or relating to cell filters
ZA772387B
(en )
1978-03-29
Improvements in or relating to filter presses
ZA774778B
(en )
1979-03-28
Improvements in or relating to glycerokinases
HK5179A
(en )
1979-02-02
Improvements in or relating to phonographs
ZA772173B
(en )
1978-03-29
Improvements in or relating to razors
KE3102A
(en )
1981-02-13
Improvements in or relating to tea
HK55781A
(en )
1981-11-20
Improvements in or relating to cleansing
ZA772286B
(en )
1978-10-25
Improvements in or relating to ovens
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
ZA761808B
(en )
1977-09-28
Improvements in or relating to gas filters
ZA773020B
(en )
1978-05-30
Improvements in or relating to filters
DE2861017D1
(en )
1981-11-26
Improvements in or relating to decollators
ZA764648B
(en )
1977-09-28
Improvements in or relating to mats
HK97484A
(en )
1984-12-21
Improvements in and relating to optical filters