FIG. 1 is a top isometric view of a first embodiment of the drainage grate frame;
FIG. 2 is an exploded top isometric view of the first embodiment of the drainage grate frame of FIG. 1;
FIG. 3 is a plan view of the first embodiment of the drainage grate frame of FIG. 1;
FIG. 4 is a bottom view of the first embodiment of the drainage grate frame of FIG. 1;
FIG. 5 is a side view of the first embodiment of the drainage grate frame of FIG. 1;
FIG. 6 is an end view of the first embodiment of the drainage grate frame of FIG. 1;
FIG. 7 is a top isometric view of a second embodiment of the drainage grate frame;
FIG. 8 is an exploded top isometric view of the second embodiment of the drainage grate frame of FIG. 7;
FIG. 9 is a plan view of the second embodiment of the drainage grate frame of FIG. 7;
FIG. 10 is a bottom view of the second embodiment of the drainage grate frame of FIG. 7;
FIG. 11 is a side view of the second embodiment of the drainage grate frame of FIG. 7;
FIG. 12 is an end view of the second embodiment of the drainage grate frame of FIG. 7;
FIG. 13 is a top isometric view of a third embodiment of the drainage grate frame;
FIG. 14 is an exploded top isometric view of the third embodiment of the drainage grate frame of FIG. 13;
FIG. 15 is a plan view of the third embodiment of the drainage grate frame of FIG. 13;
FIG. 16 is a side view of the third embodiment of the drainage grate frame of FIG. 13;
FIG. 17 is a bottom view of the third embodiment of the drainage grate frame of FIG. 13; and,
FIG. 18 is an end view of the third embodiment of the drainage grate frame of FIG. 13.
The claimed design is shown broken away to indicate that a specific length of drainage grate frame forms no part of the claimed design.