CH293126A
(en )
1953-09-15
Method and installation for sterilizing water.
RO65172A
(en )
1979-08-15
PROCESS FOR THE TREATMENT OF RESIDUAL WASTEWATER FROM INSTALLATION OF ENGRATS
BE773896A
(en )
1972-01-31
PROCESS FOR TREATING WASTE WATER
FR1082167A
(en )
1954-12-27
Process and device for the deacidification of industrial and drinking water
BE787294A
(en )
1972-12-01
PROCESS AND INSTALLATION FOR THE TREATMENT OF WASTE WATER
BE502755A
(en )
1952-08-01
PROCESS AND INSTALLATION FOR THE CLARIFICATION OF WASTE WATER.
FR1051522A
(en )
1954-01-18
Seawater treatment method for evaporation plants
FR1063025A
(en )
1954-04-29
Process for the deacidification of drinking water and industrial water
BE497436A
(en )
1950-12-01
PROCESS FOR THE PREPARATION OF ALCOYL-AROMATIC DIOXYPHENYLETHANOLAMINES.
FR1043009A
(en )
1953-11-05
Wastewater clarification
AT177729B
(en )
1954-02-25
Device for the clarification of waste water
FR1070515A
(en )
1954-07-28
Drinking and distilled water production process
BE512826A
(en )
1954-03-05
PROCESS FOR THE PREPARATION OF ANESTHESICS.
FR1023356A
(en )
1953-03-18
Process for the clarification and purification of waste or residual water
FR1029169A
(en )
1953-06-01
Improvements to the regeneration of waste liquors from paper mills
FR984576A
(en )
1951-07-09
Installation for the production of drinking water
FR1022542A
(en )
1953-03-05
Biological wastewater treatment plant
FR1002612A
(en )
1952-03-10
Purification tank for waste water
FR1086104A
(en )
1955-02-09
Process and installation for the ozonization of water
FR1076387A
(en )
1954-10-26
Sewage treatment
FR1051628A
(en )
1954-01-18
Process for the incineration of household waste
CH282392A
(en )
1952-04-30
Biological wastewater treatment plant.
FR1084486A
(en )
1955-01-19
Installation for water distribution
FR1032677A
(en )
1953-07-03
Apparatus for the alkaline digestion or fermentation of organic matter
FR1076822A
(en )
1954-10-29
Water preparation process for desalting plants