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The ornamental design of a ruler teaching apparatus, as shown and described. |
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FIG. 1 is a top perspective view of a ruler teaching apparatus showing my new design;
FIG. 2 is a front elevational view of the ruler teaching apparatus according to the present invention;
FIG. 3 is a rear elevational view of the ruler teaching apparatus according to the present invention;
FIG. 4 is a top plan view of the ruler teaching apparatus according to the present invention;
FIG. 5 is a bottom plan view of the ruler teaching apparatus according to the present invention;
FIG. 6 is a left side elevational view of the ruler teaching apparatus according to the present invention; and,
FIG. 7 is a right side elevational view of the ruler teaching apparatus according to the present invention.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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