CH13892A
(en )
1897-09-15
Advanced device to produce ozone or ozonized air
CH14632A
(en )
1898-01-15
Device for the continuous production of ozone
CH12244A
(en )
1896-11-30
Apparatus for the production of ozone
FR345666A
(en )
1904-12-08
Device to purify the air
CH29845A
(en )
1904-10-15
Device to purify the air
FR383585A
(en )
1908-03-12
Ozonator condenser device to produce ozone formation even in liquids
CH14653A
(en )
1898-01-15
Apparatus for producing currents in air or other fluids
FR388306A
(en )
1908-08-08
Apparatus for industrial water purification
CH44008A
(en )
1909-07-01
Device for ozonization of liquids
FR369846A
(en )
1907-01-22
Product to purify stale air and apparatus for its application
FR332540A
(en )
1903-10-30
New device for purifying water and other liquids
CH22351A
(en )
1902-01-15
Advanced device for the production of carbureted air
CH17210A
(en )
1899-07-15
Ignition device
CH35356A
(en )
1906-08-15
Apparatus for obtaining mixtures of gaseous fluids in determined proportions
FR342295A
(en )
1904-09-03
Apparatus for the production of ozone
FR366991A
(en )
1906-10-17
Device for the filtration and purification of industrial or food water
CH15227A
(en )
1898-04-30
Electrolysis apparatus
FR321408A
(en )
1903-01-09
Water purifier
FR334505A
(en )
1903-12-23
Water purifier
FR10847E
(en )
1909-10-08
Device for purifying water or other liquids
FR430705A
(en )
1911-10-23
Apparatus for purifying water used to supply boilers or for other purposes
FR411330A
(en )
1910-06-14
Method and apparatus for the purification of water used to supply boilers or for other purposes
FR353093A
(en )
1905-09-01
Carbonic acid generator apparatus
CH56220A
(en )
1912-10-16
Method and apparatus for the purification of water used to supply boilers or for other purposes
CH13521A
(en )
1897-07-15
Apparatus for the production of acetylene