GB1114195A
(en )
1968-05-15
Anti-splash guard for drinking receptacle
IL26737A
(en )
1969-12-31
Flexible inlet cover for waste disposer
YU167867A
(en )
1983-04-27
Device for the aeration of waste water
MY7300117A
(en )
1973-12-31
Biological treatment of waste water containing organic matter
ZA701789B
(en )
1971-05-27
Device for aerating liquids
IL23043A
(en )
1969-01-29
Apparatus for the aeration of liquids
CS186701B2
(en )
1978-12-29
Device for feeding gases into liquids especially for surface aeration of waste water
FR1500977A
(en )
1967-11-10
Safety device for water pipes
FR1507847A
(en )
1967-12-29
Device for feeding and screwing nuts
YU231368A
(en )
1981-04-30
Aeration device for biologically purifying waste water
ZA74565B
(en )
1974-11-27
Process and device for the aeration of waste water
AT283981B
(en )
1970-08-25
DEVICE FOR CONTINUOUS FEEDING OF SHAPED BODIES
FR1400436A
(en )
1965-05-28
Storage device for liquids lighter than water
YU269668A
(en )
1982-02-28
Device for biological purification of waste-water
CA768213A
(en )
1967-09-26
Apparatus for the biological purification of waste water
FR1236402A
(en )
1960-07-15
Air purge device for feed water heaters
GB1192307A
(en )
1970-05-20
Method and Device for Oxygenizing Polluted Water
CA727433A
(en )
1966-02-08
Apparatus for transporting sewage and waste liquids
FR1447811A
(en )
1966-07-29
Device for the successive feeding of sheets
CH471025A
(en )
1969-04-15
Device for the vertical conveyance of continuously fed powdery materials
CA27628S
(en )
1965-10-12
Waste receptacle
CA28530S
(en )
1966-08-08
Waste paper receptacle
CA753809A
(en )
1967-03-07
Device for feeding chemicals into liquids
CA742284A
(en )
1966-09-06
Water trough slime inhibitor
FR1407438A
(en )
1965-07-30
Automatic device for water supply