FR1317386A
(en )
1963-02-08
Process for the treatment of photopolymerizable elements
BE785004A
(en )
1972-12-18
METHOD AND COMPOSITION FOR THE TREATMENT OF WATER
CH517668A
(en )
1972-01-15
Wastewater treatment process
FR1294144A
(en )
1962-05-26
Method and apparatus for water treatment
BE601140A
(en )
1961-09-11
Treatment device for water pipes
BE608230A
(en )
1962-01-02
Process and plant for the treatment of hard water using substances which are hardly soluble
FR1271208A
(en )
1961-09-08
Process for the establishment of reinforced concrete constructions
FR1451188A
(en )
1966-01-07
Process for the treatment of delayed or timed plasters tending to fix the mixing water during setting
FR1292979A
(en )
1962-05-11
Method and apparatus for the treatment of pure water
FR1247573A
(en )
1960-12-02
Method and installation for treating water with ozone
BE775545A
(en )
1972-03-16
TREATMENT OF SEWER OR CONTAMINATED WATER
BE606544A
(en )
1961-11-16
Process for the treatment of asbestos
FR1398583A
(en )
1965-05-07
Process and plant for the treatment of water and water treated by the present process or similar process
FR1162650A
(en )
1958-09-16
Process and installations for the mechanical and biological purification of domestic waste water or the like
FR1302307A
(en )
1962-08-24
Process for the removal of sludge from sewage and the like
FR1374890A
(en )
1964-10-09
Water purification process and installation
FR1292808A
(en )
1962-05-04
Process for the surface treatment of galvanized sheets
FR1236984A
(en )
1960-07-22
Construction method for the drainage of runoff water
FR1201011A
(en )
1959-12-28
Process and installation for the treatment of slurries from muddy water
FR1309376A
(en )
1962-11-16
Process for the treatment of waste water
FR1120306A
(en )
1956-07-04
Process for the treatment of water and device for the application of this process
FR1540499A
(en )
1968-09-27
Process for the treatment of sludge in sewage treatment plants
FR1261565A
(en )
1961-05-19
Process for the treatment and incineration of waste
FR1457772A
(en )
1966-01-24
Process for the treatment of sewage
FR1276967A
(en )
1961-11-24
Water treatment process