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The ornamental design for a portable file, as shown and described. |
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FIG. 1 is a front elevational view of a portable file showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view, the left side being a mirror image thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front perspective view thereof; and
FIG. 7 is a rear perspective view thereof.
Best, James J., Sweeney, Margaret C.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 27 1988 | International Business Machines Corporation | (assignment on the face of the patent) | / | |||
| May 27 1988 | BEST, JAMES J | International Business Machines Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004892 | /0283 | |
| May 27 1988 | SWEENEY, MARGARET C | International Business Machines Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004892 | /0283 |
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