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The ornamental design for electronic keyboard musical instrument, as shown. |
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FIG. 1 is a perspective view of electronic keyboard musical instrument;
FIG. 2 is a top view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left-side view thereof;
FIG. 6 is a right-side view thereof; and,
FIG. 7 is a bottom view thereof.
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| D877238, | Oct 12 2019 | SHENZHEN SANMEISEN TECHNOLOGY CO , LTD | Piano mat |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 08 1997 | Yamaha Corporation | (assignment on the face of the patent) | / | |||
| Jan 13 1997 | ISHIGURO, TAKESHI | YAMAHA CORPORATION, A CORPORATION OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008561 | /0334 |
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