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			 The ornamental design for a wave energy dissipation block, as shown.  | 
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FIG. 1 is a top plan view of the wave energy dissipation block of the present invention;
FIG. 2 is a bottom plan view of the wave energy dissipation block depicted in FIG. 1;
FIG. 3 is a right side elevation view of the wave energy dissipation block depicted in FIG. 1;
FIG. 4 is a left side elevation view of the wave energy dissipation block depicted in FIG. 1;
FIG. 5 is a front elevation view of the wave energy dissipation block depicted in FIG. 1; and,
FIG. 6 is a rear elevation view of the wave energy dissipation block depicted in FIG. 1.
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