Opening and closing valve

Description

FIG. 1 is a front, top, and right side perspective view of an opening and closing valve;

FIG. 2 is a rear, bottom, and left side perspective view thereof;

FIG. 3 is a front elevational view thereof, the rear elevational view being a mirror image of the front elevational view;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the opening and closing valve and form no part of the claimed design.

Claims

The ornamental design for an opening and closing valve, as shown and described.