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The ornamental design for a lighting calculator, as shown and described. |
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FIG. 1 is a top, right perspective view of a lighting calculator showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a front elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 31 1988 | Cooper Industries, Inc. | (assignment on the face of the patent) | / | |||
| Jan 01 1998 | Cooper Industries, Inc | Cooper Technologies Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008920 | /0255 |
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