CH3113A
(en )
1891-06-30
Apparatus for sterilizing water and providing it drinkable
CH6993A
(en )
1893-12-15
Apparatus for water vapor disinfection
FR331668A
(en )
1903-09-25
Apparatus for water sterilization
FR3532E
(en )
1904-12-03
Apparatus for water sterilization
FR338586A
(en )
1904-05-28
Apparatus and method for the purification and sterilization of drinking and waste water
CH1876A
(en )
1890-05-31
Sophisticated settling device intended particularly for water purification
CH443A
(en )
1889-03-25
Steam boiler feed water purifier system and others
FR326933A
(en )
1903-06-10
Limiting device for measuring pressurized water flows
FR327099A
(en )
1903-06-13
Apparatus for sterilizing water and beverages says: "safety"
CH990A
(en )
1889-08-26
Apparatus intended for industrial water purification
FR336883A
(en )
1904-03-19
Apparatus intended for the purification of the feed water of steam boilers
FR346679A
(en )
1905-02-03
Apparatus for the biological purification of water and especially black water
FR1230E
(en )
1903-06-26
Limiting device for measuring pressurized water flows
FR1200E
(en )
1903-06-23
Limiting device for measuring pressurized water flows
FR1208E
(en )
1903-06-23
Limiting device for measuring pressurized water flows
CH17200A
(en )
1899-05-15
Apparatus for purifying the feed water of steam boilers
FR5904E
(en )
1906-07-27
Sewage treatment device
FR327601A
(en )
1903-06-27
Method and apparatus for disinfection of waste water
CH2922A
(en )
1891-04-30
Apparatus for sterilizing water or other liquids by destroying microbes at high temperature
FR343139A
(en )
1904-09-26
Apparatus for separating fat and water from steam
CH4715A
(en )
1892-09-15
Continuous action water meter system
FR333572A
(en )
1903-11-28
Apparatus for sterilizing water or any other liquid
CH9915A
(en )
1895-08-31
Safety device for water apparatus tank
CH4136A
(en )
1892-02-29
Adjustable disinfection device
CH13073A
(en )
1897-04-15
Apparatus for the treatment of visual impairments