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The ornamental design for a combined calculator, ruler and desk tray, substantially as shown and described. |
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FIG. 1 is a top plan view of a combined calculator, ruler, and desk tray showing my new design in closed condition;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view;
FIG. 4 is a left end elevational view;
FIG. 5 is a right end elevational view; and
FIG. 6 is a perspective view of the design in open condition.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 05 1984 | LI, ROBERT S K | RJP ELECTRONICS LIMITED, A COMPANY OF HONG KONG | ASSIGNMENT OF ASSIGNORS INTEREST | 004240 | /0786 | |
| Mar 16 1984 | RJP Electronics Limited | (assignment on the face of the patent) | / |
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