The ornamental design for a can openerknife hinge, as shown and described.
FIG. 1 is a perspective view of a can opener knife hinge showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a second side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines in the Figures are for the purpose of illustrating unclaimed portions of the can opener knife hinge and form no part of the claimed design.
The shade lines in the Figures show contour and not surface ornamentation.