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The ornamental design for an electronic keyboard musical instrument, as shown and described. |
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FIG. 1 is a top, front perspective view of an electronic keyboard musical instrument showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side elevational view, the left side being a mirror image thereof; and,
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 18 1992 | ITO, MASAFUMI | Yamaha Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 006202 | /0457 | |
| Jun 29 1992 | Yamaha Corporation | (assignment on the face of the patent) | / |
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