GB2159810B
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1988-03-16
Water purification process
AU4025285A
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1985-10-03
Water purification method
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1982-11-01
Method of purifying water
EP0242148A3
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1990-12-05
Method for purification of carotene-containing concentrate
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1980-04-09
Method of purifying water water
EP0203761A3
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1988-06-08
Process for water treatment
ZA837388B
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1984-06-27
Method of purifying uraniferous aqueous solutions
GB8802266D0
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1988-03-02
Method of & arrangement for purifying contaminated water
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1987-06-30
Process and plant for purifying waste water
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1992-05-28
Process for purifying aluminium-trioxide
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1988-11-15
Method for purifying of water solutions of pesticides
EP0233333A3
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1988-02-24
Method of treating photoresists
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1987-09-03
Water purification method
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1989-05-02
A method of and plant for purifying water
IL80548A0
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1987-02-27
Method for the treatment of impure water
SU1389050A1
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1990-08-30
Method of treating alcoholism
PL257849A1
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1987-10-19
Method of purifying phoschlorine
CS274726B2
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1991-10-15
Method of magnetohydrodynamical water treatment
BG43432A1
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1988-06-15
Method for purifying of acriylnitrile
PL261019A1
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1988-05-26
Method of and system for purifying and disactivating water
ZA88868B
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1988-09-28
Method and apparatus for the purification of water
HUT38285A
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1986-05-28
Method for purifying water
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1987-11-30
Method of crystallizing substances out of aqueous solutions
YU21586A
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1988-08-31
Process for water purification
IL83485A0
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1988-01-31
Method for the purification of trifluralin