AT4841B
(en )
1901-08-10
Device for cleaning dirty and waste water.
CH27228A
(en )
1903-12-15
Device for cleaning waste water
AT26130B
(en )
1906-10-25
Process for the treatment of household waste and street sweepings.
CH19334A
(en )
1900-06-30
Water purifier
CH18947A
(en )
1900-04-30
Device for preventing water hammer in steam engines
ES22503A1
(en )
1898-05-16
Improvements in joints of earthenware tubes and other kinds.
CH41209A
(en )
1908-09-16
Stone drain with siphon and device for cleaning the siphon and drainage
FR380333A
(en )
1907-12-05
Apparatus for ridding liquids and in particular drain water from suspended matter
GB189925320A
(en )
1900-02-03
Improvements in Stench Traps.
DK1804C
(en )
1898-09-26
Device for internal cleaning of bottles and the like.
CH44477A
(en )
1909-08-16
Process and system for regulating water runoff in valleys and watercourses and alluvial deposits
DK1719C
(en )
1898-07-25
Water purifier.
CH20342A
(en )
1901-04-30
Device for cleaning and maintaining floors
GB189916880A
(en )
1900-07-14
Improvements in the Purification of Sewage and other Foul Liquids and Water by Biological means and in the Construction Arrangement and Working of Filters for use therein.
CH22729A
(en )
1902-03-15
Liquid manure and waste water discharge device with collecting tank
ES24713A1
(en )
1899-10-16
Improvements in the chemical procedure for purifying and sterilizing drinking water by means of the apparatus described.
DK2707C
(en )
1899-12-11
Aid for Use in Arithmetic Teaching.
ES34944A1
(en )
1904-12-01
Improvements introduced in the purification procedure for drinking water and other waters.
AT3372B
(en )
1901-02-11
Vessel rinsing device.
CH45747A
(en )
1909-12-16
Stone drain with siphon and device for cleaning the latter
ES26542A1
(en )
1900-11-01
Improvements in the purification of dirty waters, especially those that contain greasy substances.
CH19643A
(en )
1900-08-31
Device for converting oscillating movement into rotating movement
CH48232A
(en )
1910-10-01
Process and device for the purification of waste water
CH38807A
(en )
1907-12-15
Device for the elimination of the solid substances contained in the waste water
CH40147A
(en )
1908-06-16
Device for draining liquid manure into liquid manure barrels