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The ornamental design for electronic keyboard musical instrument, as shown. |
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FIG. 1 is a top front perspective view of a keyboard musical instrument showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right side elevational view; and,
FIG. 7 is a left side elevational view thereof.
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| ER2440, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 19 1990 | AMIYA, EIZO | YAMAHA CORPORATION, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005223 | /0138 | |
| Jan 25 1990 | Yamaha Corporation | (assignment on the face of the patent) | / |
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