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			 The ornamental design for a highway safety marker, as shown and described.  | 
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FIG. 1 is a perspective view of a highway safety marker showing my new design;
FIG. 2 is a top plan view thereof on an enlarged scale;
FIG. 3 is a front view thereof on an enlarged scale, the rear being a mirror image;
FIG. 4 is a greatly enlarged cross-sectional view as taken on line 4--4 of FIG. 3;
FIG. 5 is a side view thereof on an enlarged scale;
FIG. 6 is a bottom view thereof on an enlarged scale.
| Patent | Priority | Assignee | Title | 
| D274895, | Jul 29 1981 | D SWAROVSKI & CO , A CORP OF AUSTRIA | Road marker | 
| Patent | Priority | Assignee | Title | 
| 3380428, | |||
| 3799507, | |||
| DE1815253, | |||
| NL97398, | 
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