Electrocardiogram Recorder

FIG. 1 is a front perspective view of an electrocardiogram recorder in accordance with our new and ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front perspective view thereof shown in its environment of use.

The dashed broken lines indicate portions of the electrocardiogram recorder, and environmental structure, and form no part of the claimed design.