Claims (1)
Claim 1 (Independent)
The ornamental design for a protective helmet, as shown and described.
Full Description
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FIG. 1 shows a front, right side perspective view of a protective helmet showing our new design. FIG. 2 shows a right side, rear perspective view of the protective helmet. FIG. 3 shows a front view of the protective helmet. FIG. 4 shows a rear view of the protective helmet. FIG. 5 shows a right side view of the protective helmet (the left side view being a mirror image, is omitted). FIG. 6 shows a top view of the protective helmet; and, FIG. 7 shows a bottom view of the protective helmet.
Citations
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