FR411330A
(en )
1910-06-14
Method and apparatus for the purification of water used to supply boilers or for other purposes
FR430705A
(en )
1911-10-23
Apparatus for purifying water used to supply boilers or for other purposes
FR428919A
(en )
1911-09-11
Method and apparatus for the purification of water for industrial applications
FR431552A
(en )
1911-11-14
Dirty water purification device
FR388306A
(en )
1908-08-08
Apparatus for industrial water purification
FR447357A
(en )
1912-12-31
Method and apparatus for purifying water and other liquids
FR438417A
(en )
1912-05-17
Method and device for the purification of feed water
FR435104A
(en )
1912-02-22
Process and devices for water purification
FR480408A
(en )
1916-08-03
Water softening process and apparatus for carrying it out
FR426646A
(en )
1911-07-11
Device for the purification of waste water
FR478737A
(en )
1916-01-05
Method and apparatus for purification of boiler feed water
FR461622A
(en )
1914-01-07
Apparatus for the purification of black water
FR426122A
(en )
1911-06-28
Method and apparatus for bottling mineral water
FR458552A
(en )
1913-10-14
Transportable device for cleaning water drainage pipes and others
FR457499A
(en )
1913-09-18
Process for water purification and sludge desiccation
FR366991A
(en )
1906-10-17
Device for the filtration and purification of industrial or food water
FR468763A
(en )
1914-07-16
Device for the purification of waste water
FR496088A
(en )
1919-10-25
Method and apparatus for supplying water to boilers
FR493985A
(en )
1919-08-27
Method and apparatus for the purification of sewage and other liquids
FR356027A
(en )
1905-11-18
Apparatus for the evaporation of salt water and the simultaneous production of high voltage steam
CH65550A
(en )
1914-08-01
Water purification device
FR399713A
(en )
1909-07-06
Method and apparatus for the purification of water by centrifugal action
FR358105A
(en )
1906-01-29
Method and apparatus for the purification and sterilization of drinking water
FR423938A
(en )
1911-05-01
Apparatus and method for the purification and clarification of sewage
FR430925A
(en )
1911-10-27
New process for the purification and use of sewage