The ornamental design for a portion of a three-legged support frame for a grainmillingpurifier, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front, top left side perspective view of a three-legged support frame for a grain milling purifier embodying our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a top plan view thereof; and
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a rear, top left side perspective view thereof.
The portion of the design shown in blue is for the purpose of illustrating a grain mill purifier and forms no part of the claimed design.