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The ornamental design for a calculator casing, substantially as shown and described. |
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FIG. 1 is a view in perspective of a calculator casing showing our new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a top elevational view thereof;
FIG. 4 is a plan view thereof; and
FIG. 5 is a bottom elevational view thereof.
The rear side of the calculator casing is plain.
Sulek, Eugene Joseph, Lawrence, William James
| Patent | Priority | Assignee | Title |
| D332508, | Nov 05 1990 | Aqua Tank Incorporated | Aquarium |
| D366870, | Oct 11 1994 | Computer keyboard |
| Patent | Priority | Assignee | Title |
| 227472, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 02 1976 | Texas Instruments Incorporated | (assignment on the face of the patent) | / |
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