Invertible magnetic stand for test tubes

FIG. 1 is an upper perspective view of the invertible magnetic stand for test tubes showing our design;

FIG. 2 is an exploded perspective view of the stand, showing a magnetic core for creating a magnetic field for test tubes held in a rack portion of the stand;

FIG. 3 is an exploded side elevation view thereof;

FIG. 4 is an exploded opposite side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is an exploded end elevation view thereof;

FIG. 8 is an exploded opposite end elevation view thereof; and,

FIG. 9 is another perspective view of invertible magnetic stand for test tubes, showing an alternate, inverted configuration of the rack portion of the stand for use with test tubes of different sizes.