SLIDE CONVEYORS AND SEPARATORS FOR MAGNETIC FILTRATION AND SEPARATION OF MAGNETIZABLE IMPURITIES FROM LIQUIDS; SLIDE CONVEYORS AND SEPARATORS FOR MAGNETIC DEPARATION OF MAGNETIC IMPURITIES FROM DRY GRANULAR OR POWDERY MATERIALS; SLIDE CONVEYORS OR SEPARATORS FOR MAGNETIC SEPARATION AND CONVEYANCE OF MAGNETIZABLE PARTS FROM LIQUIDS OR FROM DRY GRANULAR MATERIALS [ ; MAGNETIC FILTER TRAPS FOR SEPARATING AND TRAPPING MAGNETIZABLE IMPURITIES IN LIQUIDS OR DRY GOODS FLOWING THROUGH PIPES OR DUCTS;...