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The ornamental design for the construction block, as shown and described.
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FIG. 1 is a front perspective view;
FIG. A—A is a cut view taken from the line A—A—A—A in FIG. 1.
FIG. 2 is a front elevational view;
FIG. 3 is a back view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan thereof;
FIG. 8 is a top plan view of a block shown on a reduced scale in condition of use with a plurality of like blocks thereof;
FIG. 9 is a perspective view of a block shown on a greater reduced scale in condition of use with a plurality of like blocks in a stacked configuration with reinforcement rods thereof; and,
FIG. 10 is a cut-away view of FIG. 9 thereof.
The broken lines are for environmental purposes only and form no part of the claimed design.
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