Impeller for centrifugal pumps or similar article
FIG. 1 is a perspective view of an impeller for centrifugal pumps or similar article showing my new design; 
     FIG. 2 is a front view thereof; 
     FIG. 3 is a top plan view thereof; 
     FIG. 4 is a rear view thereof; 
     FIG. 5 is a left side view thereof; 
     FIG. 6 is a right side view thereof; and 
     FIG. 7 is a bottom plan view thereof.