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The ornamental design for a mask, as shown and described.
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FIG. 1 is a perspective view of a mask, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof with the right side elevational view being a mirror image of the left side elevational view;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Rudolph, Kevin A., Keck, Mitchell
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 03 2002 | RUDOLPH, KEVIN A | HANS RUDOLPH INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013675 | /0486 | |
| May 03 2002 | KECK, MITCHELL | HANS RUDOLPH INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013675 | /0486 | |
| May 15 2002 | Hans Rudolph, Inc | (assignment on the face of the patent) | / |
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