GB8416993D0
(en )
1984-08-08
Biological activating cleaning of waste waters
HUT40054A
(en )
1986-11-28
Process for processing dung water deriving from the excrement of useful animals
GB2172216B
(en )
1989-07-19
Water treatment plant
GB8610479D0
(en )
1986-06-04
Disinfection of water
EP0203549A3
(en )
1987-10-21
Waste water treatment process
GB2143811B
(en )
1987-09-23
Biological activating cleaning of waste waters
AU562740B2
(en )
1987-06-18
Anaerobic biological denitrification of aquarium water
CS96185A1
(en )
1989-04-14
Method of sewage waters cleaning from domestic animals' large-scale breeding
GB8722897D0
(en )
1987-11-04
Treatment of potable water
CS96285A1
(en )
1989-04-14
Method of sewage waters cleaning coming from excrements from domestic animals' large-scale breeding
GB8412085D0
(en )
1984-06-20
Clean water treatment
GB8706283D0
(en )
1987-04-23
Disinfection of water supplies
GB8627122D0
(en )
1986-12-10
Anaerobic treatment of waste water
GB8717534D0
(en )
1987-09-03
Water purification method
BG43766A1
(en )
1988-08-15
Method for biological cleaning of waste waters
GB8716573D0
(en )
1987-08-19
Biological purification of waste waters
YU80085A
(en )
1987-10-31
Device for aerobic cleaning of waste water
GB2201408B
(en )
1991-03-20
Purification of drinking water
KR890000050U
(en )
1989-03-02
Fish tank water purifier
KR880004592U
(en )
1988-05-10
Water Purifier for Garden Pond
GB8510794D0
(en )
1985-06-05
Animals drinking water bowl
IE870037L
(en )
1987-07-08
Biological purification of waste water
ZA871492B
(en )
1987-10-28
Treatment of waste water
IE850926L
(en )
1985-10-13
Continuous monitoring of water using aquatic animals
GB8403850D0
(en )
1984-03-21
Biological treatment of waste water