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The ornamental design for a combined letter tray and step file, substantially as shown and described. |
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FIG. 1 is a perspective view of a combined letter tray and step file embodying my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view thereof, the opposite side being a mirror image thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof; and
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 13 1984 | Sterling Plastic Co. | (assignment on the face of the patent) | / | |||
| Apr 13 1984 | RABIG, DONALD B | STERLING PLASTIC, CO , | ASSIGNMENT OF ASSIGNORS INTEREST | 004248 | /0990 | |
| Sep 23 1988 | BORDEN, INC , | SANFORD CORPORATION, A CORP OF ILLINOIS | ASSIGNMENT OF ASSIGNORS INTEREST | 004985 | /0637 |
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