DK53815C
(en )
1937-11-01
Procedure for biological treatment of both waste water and the contaminants contained therein.
DK53258C
(en )
1937-06-21
Procedure for the Treatment of Industrial and Urban Wastewater.
DK50663C
(en )
1935-09-16
Procedure for the treatment of waste water, such as sewage and similar waste liquids.
ES137044A3
(en )
1935-05-16
Drinking and waste water treatment procedure.
SU46581A1
(en )
1936-04-30
The method of purification of sludge from resinous substances
DK56309C
(en )
1939-06-19
Methods, Apparatus and Facilities for the Treatment of Domestic Waste.
DK53195C
(en )
1937-06-07
Wastewater Treatment Procedure.
DK50924C
(en )
1935-11-18
Wastewater Treatment Procedure.
DK53541C
(en )
1937-08-30
Wastewater Treatment Procedure.
DK48812C
(en )
1934-05-28
Sewage and sewage treatment plants.
DK54475C
(en )
1938-03-14
Wastewater treatment plant.
DK41947C
(en )
1930-03-31
Procedure for Biological Wastewater Treatment.
ES132969A1
(en )
1934-10-01
PROCEDURE FOR THE TREATMENT OF WASTE, SEWER WATER AND THEIR SIMILARS AND DEVICE FOR THEIR EXECUTION
DK51924C
(en )
1936-07-27
Water Treatment Procedure.
DK49902C
(en )
1935-02-18
Procedure for Treatment of Bearing Surfaces.
DK50531C
(en )
1935-08-12
Installations for the Treatment of Contaminated Oil or Similar Liquids.
DK48765C
(en )
1934-05-22
Procedure and devices for incineration of domestic waste.
GR5365B
(en )
1935-07-26
DISPOSAL SYSTEM OF HOUSEHOLD WASTE.
DK71411C
(en )
1950-08-28
Methods and apparatus for treating water, waste water and similar aqueous liquids.
CA319262A
(en )
1932-01-26
Sewage sludge treatment
DK58323C
(en )
1941-01-13
Method and apparatus for treating water, waste water and similar aqueous liquids.
DK48973C
(en )
1934-07-09
Wastewater treatment plant.
DK36148C
(en )
1926-06-21
Procedure for sterilizing water and other liquids.
ES139855A1
(en )
1936-01-01
Improvements in the treatment of liquids.
ES130948A3
(en )
1933-08-01
Improvements in wastewater treatment facilities.