| 
 | The ornamental design for a putting aid for golfers, as shown. | |||||||||||||||||
FIG. 1 is a top perspective view of a putting aid for golfers showing my new design;
FIG. 2 is a perspective view of the putting aid from below;
FIG. 3 is a side elevation of the putting aid;
FIG. 4 is a plan view of the putting aid;
FIG. 5 is a sectional end view of the putting aid taken on line 5--5 of FIG. 4; and
FIG. 6 is a sectional end view of the putting aid taken on line 6--6 on FIG. 4.
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