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The ornamental design for a rib extrusion, as shown and described. |
FIG. 1 is a fragmentary perspective view of a rib extrusion showing my new design;
FIG. 2 is a right-end elevational view thereof, the left-end elevational view being a mirror image thereof;
FIG. 3 is a fragmentary front elevational view thereof;
FIG. 4 is a fragmentary top plan view thereof;
FIG. 5 is a fragmentary rear elevational view thereof; and,
FIG. 6 is a fragmentary bottom plan view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 12 1991 | Outwater Plastic Industries, Inc. | (assignment on the face of the patent) | / |
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