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The ornamental design for an instrument for measuring tumors, as shown and described. |
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FIG. 1 is a right side elevational view of an instrument for measuring tumors showing our new design;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view;
FIG. 4 is a left side elevational view;
FIG. 5 is a front elevational view; and
FIG. 6 is a rear elevational view thereof.
Dorr, Robert T., Alberts, David S.
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