|
US2468455A
|
|
Production of disodium phosphate dihydrate
|
|
US2419148A
|
|
Manufacture of sodium triphosphates
|
|
US2395126A
|
|
Water treatment and composition
|
|
US2419147A
|
|
Manufacture of sodium tripolyphosphate
|
|
US2370473A
|
|
Water treatment
|
|
US2370472A
|
|
Vitreous compositions consisting of oxides of alkali metal, phosphorus, and other selected divalent metal
|
|
US2285676A
|
|
Detergent composition
|
|
US2296495A
|
|
Manufacture of anhydrous monocalcium phosphate
|
|
US2296494A
|
|
Manufacture of anhydrous di-calcium phosphate
|
|
US2181933A
|
|
Manufacture of mono-calcium phosphate
|
|
US2127626A
|
|
Purifying lime
|
|
US2130869A
|
|
Manufacture of noncaking powder composition
|
|
US2078627A
|
|
Manufacture of dicalcium phosphate
|
|
US2053319A
|
|
Purifying treatment for alkali metal phosphate solutions
|
|
CA432637A
|
|
Water treatment
|
|
CA448106A
|
|
Manufacture of sodium triphosphate
|
|
CA432636A
|
|
Polyphosphate salt
|
|
CA383382A
|
|
Non-caking powder composition
|
|
CA443725A
|
|
Water treatment and composition
|
|
CA448105A
|
|
Manufacture of sodium tripolyphosphate
|
