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The ornamental design for a retrofit louver for evaporative air coolers, as shown and described. |
FIG. 1 is a front perspective view showing my new retrofit louver design;
FIG. 2 is a top plan view thereof, the bottom being a mirror image of that shown;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof, the right side being a mirror image of that shown;
FIG. 5 is a cross-sectional view thereof, taken along line 5--5 in FIG. 3; and,
FIG. 6 is a cross-sectional view thereof, along line 6--6 in FIG. 3.
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