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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 my new design;
FIG. 2 is a side elevational view thereof on an enlarged scale;
FIG. 3 is a plan view thereof on an enlarged scale;
FIG. 4 is a front elevational view thereof on an enlarged scale; and
FIG. 5 is a back elevational view thereof of an enlarged scale.
The bottom side of the calculator casing is plain and conventional.
| Patent | Priority | Assignee | Title |
| D253955, | Feb 21 1978 | Texas Instruments Incorporated | Case for a printing calculator |
| D262890, | Dec 01 1978 | Texas Instruments Incorporated | Case for printing calculator or the like |
| Patent | Priority | Assignee | Title |
| 233442, |
| 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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