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The ornamental design for a music teaching aid, as shown. |
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FIG. 1 is a perspective view showing the music teaching aid showing our new design seen obliquely from above.
FIG. 2 is a perspective view showing the stand of the music teaching aid according to FIG. 1 seen obliquely from below.
FIG. 3 is a top plan view showing the top face of the ruler of the music teaching aid according to FIG. 1.
FIG. 4 is a bottom plan view showing the bottom face of the ruler of the music teaching aid according to FIG. 1.
FIG. 5 is a top plan view showing the top face of the stand of the music teaching aid according to FIG. 1.
Nilsson, Folke B., Lindahl, Bengt Erik
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| D636815, | Sep 01 2010 | Guitar note map | |
| D785091, | Dec 11 2015 | ADVANCE ENERGY SOLUTIONS | Drummer training apparatus |
| D888151, | Nov 09 2017 | Piano key overlay tile | |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 31 1976 | Almqvist & Wiksell Laromedel AB | (assignment on the face of the patent) | / |
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