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The ornamental design for a swimming pool filter, as shown and described. |
FIG. 1 is a top perspective view of a swimming pool filter showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevation view thereof, the opposite side is a mirror image;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof; and,
FIG. 6 is a bottom plan view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 29 1992 | GARRIGOS, ROBERT R | DOLL, S A | ASSIGNMENT OF ASSIGNORS INTEREST | 006121 | /0370 | |
May 12 1992 | Doll, S.A. | (assignment on the face of the patent) | / |
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