|
GB636553A
|
|
Improvements in or relating to dry flocculating reagents
|
|
US2286979A
|
|
Washing of sand, gravel, and the like
|
|
US2354146A
|
|
Softening of water and the flocculation of suspended solids in aqueous liquids
|
|
GB542729A
|
|
Improvements in or relating to the washing of sand, gravel and the like
|
|
US2362409A
|
|
Reagent for softening water and the flocculation of suspended solids therein
|
|
US2326395A
|
|
Flocculating reagent for aqueous suspensions and sludges
|
|
GB516657A
|
|
Improvements in or relating to the manufacture of nickel and cobalt salts
|
|
GB474239A
|
|
Improvements in or relating to settling or thickening apparatus for dispersions and the like
|
|
US2149748A
|
|
Treatment of dispersions
|
|
CA447740A
|
|
Water softening
|
|
CA446327A
|
|
Water softening and flocculation of suspended solids in aqueous liquids
|
|
CA423573A
|
|
Flocculation of aqueous suspensions and sludges
|
|
CA440698A
|
|
Water softening process
|
|
CA405691A
|
|
Water softening process
|
