The ornamental design for a cashregister for a point of sale terminal, as shown and described.
FIG. 1 is a perspective view of a cash register for a point of sales terminal showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a left side view thereof.
The broken line showing in the drawings is included for the purpose of illustrating portions of the cash register for a point of sale terminal and forms no part of the claimed design.