DK50663C
(en )
1935-09-16
Procedure for the treatment of waste water, such as sewage and similar waste liquids.
DK48730C
(en )
1934-05-07
Procedure and Device for Aerating Liquids.
DK53258C
(en )
1937-06-21
Procedure for the Treatment of Industrial and Urban Wastewater.
DK53815C
(en )
1937-11-01
Procedure for biological treatment of both waste water and the contaminants contained therein.
DK56309C
(en )
1939-06-19
Methods, Apparatus and Facilities for the Treatment of Domestic Waste.
DK48812C
(en )
1934-05-28
Sewage and sewage treatment plants.
DK54814C
(en )
1938-05-30
Procedure for Preventing the Disposal of Dairy Wastewater.
DK53541C
(en )
1937-08-30
Wastewater Treatment Procedure.
DK50924C
(en )
1935-11-18
Wastewater Treatment Procedure.
DK71411C
(en )
1950-08-28
Methods and apparatus for treating water, waste water and similar aqueous liquids.
DK48765C
(en )
1934-05-22
Procedure and devices for incineration of domestic waste.
DK48315C
(en )
1934-01-29
Device for Removal, Demanding and Acidification of Water.
DK47721C
(en )
1933-09-04
Procedure for Accelerating the Hardening of Water.
DK58323C
(en )
1941-01-13
Method and apparatus for treating water, waste water and similar aqueous liquids.
ES137044A3
(en )
1935-05-16
Drinking and waste water treatment procedure.
DK48941C
(en )
1934-07-02
Procedure for the manufacture of pavements, pavements and the like.
DK51924C
(en )
1936-07-27
Water Treatment Procedure.
DK48973C
(en )
1934-07-09
Wastewater treatment plant.
DK41947C
(en )
1930-03-31
Procedure for Biological Wastewater Treatment.
DK54475C
(en )
1938-03-14
Wastewater treatment plant.
ES128774A1
(en )
1933-01-16
Improvements in sewage treatment plants, latrines and similar products.
CA319262A
(en )
1932-01-26
Sewage sludge treatment
DK36148C
(en )
1926-06-21
Procedure for sterilizing water and other liquids.
DK50949C
(en )
1935-11-25
Apparatus for the Electrolytic Separation of Substances of Liquids, In particular of Water.
DK50531C
(en )
1935-08-12
Installations for the Treatment of Contaminated Oil or Similar Liquids.