Gas tonometer

Abstract

Description

FIG. 1 is a front three quarter perspective view of a gas tonometer showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a top plan view thereof.

Claims

The ornamental design for a gas tonometer, substantially as shown.