US D300361 S
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FIG. 1 is a front elevational view of a combined venting valve and coupling for medical drainage tubes, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a side elevational view thereof, the opposite being identical thereto;
FIG. 5 is a perspective view thereof; and
FIG. 6 is an enlarged fragmentary perspective view showing details of the vent portion.