FR32231E
(en )
1927-09-13
Settling tank for washing water containing flammable liquids lighter than water
FR598462A
(en )
1925-12-17
Settling tank for washing water containing flammable liquids lighter than water
FR662793A
(en )
1929-08-12
Bowl of centrifuges for the treatment of liquids containing sludge
FR592129A
(en )
1925-07-28
Apparatus for separating water from oil and other liquids lighter than water
FR569253A
(en )
1924-04-09
Apparatus for the treatment of water contained in the holds of ships
FR569994A
(en )
1924-04-22
Draw-off valve for liquids less fluid than water
FR690342A
(en )
1930-09-18
Process for removing unwanted elements such as air, water, etc., contained in solid or liquid hydrocarbons
FR574703A
(en )
1924-07-18
Installation for discharging from a tank and measuring liquids lighter than water
FR644878A
(en )
1928-10-16
Septic tank for the settling of waste water
FR618996A
(en )
1927-03-24
Decantation tank for wastewater containing hydrocarbons
FR682183A
(en )
1930-05-23
Improvements to settling tanks particularly intended for the treatment of wool washing liquors
FR569699A
(en )
1924-04-16
Tap for water distribution
FR32572E
(en )
1928-02-14
Apparatus for separating water from oil and other liquids lighter than water
FR748947A
(en )
1933-07-13
Apparatus for the removal of odors from waste water from septic tanks
FR608170A
(en )
1926-07-22
Advanced settling device for automatic purifiers of water and other liquids
FR549851A
(en )
1923-02-21
Safety device preventing flammable liquids lighter than water from being drained into the sewers
FR656000A
(en )
1929-04-25
Tube for the treatment of liquid hydrocarbons
FR853851A
(en )
1940-03-30
Submerged tank for storing hydrocarbons or other liquids less dense than water
FR638739A
(en )
1928-06-01
Process for the extraction and refining of fats contained in sewage residues of body wash water containing fats and especially wool
FR597865A
(en )
1925-12-01
Distribution valve for water pipes or other liquids
FR731392A
(en )
1932-09-02
Sewage treatment tank soiled with liquid hydrocarbons or the like
FR667321A
(en )
1929-10-15
Improvements to thermal sterilizers for water and other liquids
FR631940A
(en )
1927-12-29
Pressure reducer for water vapor
FR727857A
(en )
1932-06-25
Discharge valve for water and other liquids
FR33232E
(en )
1928-08-20
Safety tank for liquids