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1988-02-10
Water supply method and system
PH20891A
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1987-05-27
Composition and method for treatment of water systems in paperpulping
DE3466667D1
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1987-11-12
Water treatment method and apparatus
IL92788A0
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1990-09-17
Method of treating water containing fertilisers
PT81080A
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1985-10-01
Insitu waste treating apparatus and method of its use
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1988-10-12
Water treatment method and apparatus
HK91494A
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1994-09-09
Method of treating fluids
GB2199821B
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1990-04-04
Method of and arrangement for purifying contamied water
GB2190751B
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1988-07-13
Apparatus and method for monitoring organs of the body
PL251378A1
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1986-07-15
Method of and water supply system for treating water for medical use
YU172784A
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1988-02-29
Process for treating of animal blood and its parts
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1990-12-05
Water treatment apparatus and method
PL236135A1
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1983-10-24
Method of water treatment and water supply system therefor
PL236134A1
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1983-10-24
Method of water treatment and water supply system therefor
GB2210869B
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1990-11-14
Method and apparatus for the treatment of water
JPS6418495A
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1989-01-23
Waste water treating tank and method of treating waste water
EP0226715A3
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1988-04-06
Process and apparatus for the biological denitrification of water
GB2164641B
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1988-12-29
Method and apparatus for the biological treatment of sewage
GB8512143D0
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1985-06-19
Method of treatment
GB8429163D0
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1984-12-27
Treatment of water supply pipes
BG37434A1
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1985-06-14
Apparatus for magnetic treatment of water in irrigation system
CS274726B2
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1991-10-15
Method of magnetohydrodynamical water treatment
CS436087A1
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1990-05-14
Method of water treatment for thermal systems
PL265541A1
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1988-11-24
Method of and apparatus for treating water
PL268724A1
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1989-05-16
Method of treating water