CH62514A
(en )
1913-12-16
Automatic remover of leaves, debris and solid particles carried by water
CH66955A
(en )
1914-10-16
Automatic remover of leaves, debris or large particles carried by the water
FR17189E
(en )
1913-07-03
Automatic remover of leaves, debris or large particles carried by water or moving fluids
FR440542A
(en )
1912-07-12
automatic remover of leaves, debris or large particles carried by water or moving fluids
FR28241E
(en )
1925-01-26
Improvements to water gauging taps
FR440526A
(en )
1912-07-12
Automatic shutter of the back retention for sewage pipes
FR412634A
(en )
1910-07-18
Water purifier
FR401567A
(en )
1909-09-03
Water spray adjustment applicable in particular to watering coal mines
FR418931A
(en )
1910-12-22
Automatic water purifier
FR484749A
(en )
1917-10-31
Improvements to devices for softening and purifying water
FR488433A
(en )
1918-10-08
Improvements to automatic water purifiers
FR441361A
(en )
1912-08-05
Direct moderator and water decompressor valve
FR435430A
(en )
1912-02-29
feed water purifier
FR427475A
(en )
1911-08-04
feed water purifier
CA143415A
(en )
1912-10-15
Waste water trap
FR419440A
(en )
1911-01-06
Device for automatic cleaning of water pipes
FR464826A
(en )
1914-03-31
Device for the automatic verification of water purification installations
FR841262A
(en )
1939-05-15
Process for separating salt water and solid particles from crude oils and the like
CH68879A
(en )
1915-05-01
Water and steam collector for boilers
FR440575A
(en )
1912-07-13
Process improvements to extract water from wet carbonized peat
FR438293A
(en )
1912-05-13
Water return valve
FR471079A
(en )
1914-10-13
Water purifier
FR439756A
(en )
1912-06-22
automatic purifier of sewage and sewage
FR428684A
(en )
1911-09-05
Device for cleaning watercourse grids
FR14401E
(en )
1911-12-13
Automatic flow limiter device for water pipes