USD274753S - Middle ear ventilation tube - Google Patents

Description

FIG. 1 is a top perspective view of a middle ear ventilation tube embodying the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a perspective view taken in the direction of the arrow 5 of FIG. 3;

FIG. 6 is a top perspective view of a second embodiment of a middle ear ventilation tube embodying the new design;

FIG. 7 is an enlarged bottom perspective view of the embodiment of FIG. 5; and

FIG. 8 is a side elevational view of the embodiment of FIG. 5.

The front elevational view of FIG. 4 and the perspective view of FIG. 5 are also illustrative of the embodiment of FIGS. 6-8.

Claims (1)

1. The ornamental design for a middle ear ventilation tube, substantially as shown and described.

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