CH57551A
(en )
1913-01-16
Process for softening hard water and apparatus for carrying out this process
FR481877A
(en )
1917-01-24
Method and apparatus for sterilizing water
FR464670A
(en )
1914-03-27
Method and apparatus for water purification
FR428854A
(en )
1911-09-09
Method and apparatus for decomposing water
FR432003A
(en )
1911-11-25
Method and apparatus for purifying water and sewage
FR426122A
(en )
1911-06-28
Method and apparatus for bottling mineral water
FR439600A
(en )
1912-06-17
Process for softening water
FR422637A
(en )
1911-03-27
Method and apparatus for sterilizing water
FR430948A
(en )
1911-10-27
Method and apparatus for the mechanical and chemical cleaning of pipes in general, and water pipes in particular
FR412960A
(en )
1910-07-28
Method and apparatus for purification and clarification of water
FR479518A
(en )
1916-04-07
Process for drying substances containing water
FR480408A
(en )
1916-08-03
Water softening process and apparatus for carrying it out
FR497959A
(en )
1919-12-23
Method and apparatus for cleaning sewage pipes
FR506617A
(en )
1920-08-26
Process for softening water
FR418424A
(en )
1910-12-09
Process for the treatment of waste water
FR438999A
(en )
1912-06-01
Water softening process
FR448852A
(en )
1913-02-12
Process for sterilizing water and removing ferruginous and other impurities
FR450520A
(en )
1913-03-27
Process for water purification
FR434722A
(en )
1912-02-10
Method and apparatus for the incineration of household waste
FR22135E
(en )
1921-05-13
Process for water softening
FR409006A
(en )
1910-04-11
Process for water softening
FR486483A
(en )
1918-04-09
Method and machine for softening flexible materials
FR479294A
(en )
1916-03-03
Process for scouring silk and silk waste
FR456501A
(en )
1913-08-28
Electrolysis process and apparatus for carrying it out
FR434882A
(en )
1912-02-15
Method of cleaning flexible pipes and apparatus for its implementation