US D254445 S
Abstract available in
FIG. 1 is a top plan view of the column according to my invention and shows the centrally located chromatigraphic bed support;
FIG. 2 is an exploded front view of the column according to my invention which further shows the bed support in the bottom of the cylindrical column and the cap used to close the lower opening of the column;
FIG. 3 is a bottom view of the column of FIG. 2; and
FIG. 4 is a top plan view of the cap of FIG. 2.