BG17004A3
(en )
1973-04-25
SURFACE AERATOR FOR CIRCULATING FLUIDS, IN PARTICULAR FOR FLUIDS FOR WASTEWATER TREATMENT PLANTS
NL7610600A
(en )
1977-03-31
WATER TREATMENT DEVICE.
ATA229974A
(en )
1979-06-15
WATER MASSAGE DEVICE
IT980336B
(en )
1974-09-30
EQUIPMENT FOR WATER TREATMENT
AT328382B
(en )
1976-03-25
DRAIN PLUG FOR LIQUIDS, IN PARTICULAR FOR WASTE WATER
IT1048163B
(en )
1980-11-20
WATER TREATMENT
IT992174B
(en )
1975-09-10
PROCEDURE AND DEVICE FOR DEPU RARE WASTE WATER
AT340952B
(en )
1978-01-10
DRAINAGE DEVICE
SE403768B
(en )
1978-09-04
CLEANING DEVICE FOR CLEANING AND WASTEWATER SYSTEMS
BR7308655D0
(en )
1974-09-05
IMPROVEMENT IN RECIRCULANT TREATMENT SYSTEM FOR SERVED WATERS
AR195032A1
(en )
1973-08-30
SEA WATER DESALINATION APPARATUS
IT977670B
(en )
1974-09-20
DEVICE FOR ANCHORING PIPE INLETS IN THE WALLS
IT955269B
(en )
1973-09-29
WATER TREATMENT DEVICE
IT989192B
(en )
1975-05-20
DEVICE FOR SHOWER
IT1023154B
(en )
1978-05-10
WATER TREATMENT DEVICE
ES197244Y
(en )
1975-09-01
DEVICE FOR THE TREATMENT OF WASTE WATER.
NL7404471A
(en )
1975-10-06
WATER TREATMENT METHOD.
FI52606C
(en )
1977-10-10
Device for controlling water flushing in sanitary installations.
IT975973B
(en )
1974-08-10
DRYER DEVICE FOR WASTE WATER SLUDGE
SE7410860L
(en )
1975-03-03
ACOUSTIC SURFACE WATER DEVICE.
BG20093A3
(en )
1975-10-30
SURFACE AERATOR DEVICE, IN PARTICULAR FOR WATER TREATMENT INSTALLATIONS
IT989691B
(en )
1975-06-10
MECHANICAL AERATOR FOR SEWAGE WATER TREATMENT EQUIPMENT
SE7407237L
(en )
1974-12-06
ACOUSTICS SURFACE WATER DEVICE.
CH548733A
(en )
1974-05-15
LIVESTOCK DRINKING BASIN.
AT295426B
(en )
1972-01-10
Sewage treatment plant