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The ornamental design for an electronic keyboard musical instrument, as shown. |
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FIG. 1 is a top view of an electronic keyboard musical instrument;
FIG. 2 is a front 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.
| Patent | Priority | Assignee | Title |
| D483793, | Mar 12 2002 | Yamaha Corporation | Electronic keyboard musical instrument |
| D499442, | Dec 27 2002 | Yamaha Corporation | Electronic keyboard instrument |
| D532815, | Mar 09 2005 | Casio Keisanki Kabushiki Kaisha | Electronic keyboard musical instrument |
| Patent | Priority | Assignee | Title |
| 5157213, | May 26 1986 | Casio Computer Co., Ltd. | Portable electronic apparatus |
| D312651, | Dec 10 1987 | Yamaha Corporation | Electronic keyboard musical instrument |
| D325213, | Dec 20 1989 | Yamaha Corporation | Electronic keyboard musical instrument |
| D345574, | Jan 08 1992 | Yamaha Corporation | Electronic keyboard musical instrument |
| D372930, | Jan 10 1995 | Yamaha Corporation | Electronic keyboard musical instrument |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 03 1998 | TATSUMI, KEIZO | Yamaha Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009395 | /0819 | |
| Aug 11 1998 | Yamaha Corporation | (assignment on the face of the patent) | / |
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