Nonmagnetic conductive material separating apparatus
Nonmetallic abrasive blasting material recovery process includin
Note sorting and counting apparatus
Note sorting and counting apparatus
Note transfer mechanism in automatic money depositing and disbur
Novel collector composition for froth flotation
Novel collectors and processes for making and using same
Novel collectors for the selective froth flotation of mineral su
Novel collectors for the selective froth flotation of mineral su
Novel flotation agents for the beneficiation of phosphate ores
Novel O,O'-, O,S'- or S,S'-dithiodialkylene-bis(mono- or dihydro
Nozzle for screen apparatus