Pipe coupling segment

FIG. 1 is an isometric view of our design for a pipe coupling segment;

FIG. 2 is a front view of the design for a pipe coupling segment shown in FIG. 1, the rear view being identical;

FIG. 3 is a top view of the design for a pipe coupling segment shown in FIG. 1;

FIG. 4 is a bottom view of the design for a pipe coupling segment shown in FIG. 1; and,

FIG. 5 is a left side view of the design for a pipe coupling segment shown in FIG. 1, the right side view being identical.

We claim the ornamental design for a pipe coupling segment, as shown and described.

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