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The ornamental design for an electronic keyboard musical instrument, as shown. |
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FIG. 1 is a front view of an electronic keyboard musical instrument showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side view thereof; and,
FIG. 6 is a right side view thereof.
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| D572299, | Dec 28 2007 | Casio Keisanki Kabushiki Kaisha | Electronic keyboard musical instrument |
| D572300, | Dec 28 2007 | Casio Keisanki Kabushiki Kaisha | Electronic keyboard musical instrument |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 20 1999 | KATSUMATA, YOSHIHIRO | Yamaha Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009789 | /0609 | |
| Jan 21 1999 | Yamaha Corporation | (assignment on the face of the patent) | / |
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