Shelf frame structure

Description

FIG. 1 is a perspective view of a shelf frame structure showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the figures are for the purpose of illustrating environment and form no part of the claimed design.

Claims

The ornamental design for a shelf frame structure, as shown and described.