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The ornamental design for a line square, as shown and described. |
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FIG. 1 is a top, front and left side perspective view of a line square showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a rear elevational view;
FIG. 4 is a left side elevational view;
FIG. 5 is a right side elevational view;
FIG. 6 is a bottom plan view; and,
FIG. 7 is a top plan view thereof.
FIG. 1 has been drawn on an enlarged scale with respect to FIGS. 2-7.
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