The ornamental design for a chain for slidefastener, as shown and described.
FIG. 1 is a first perspective view of the front, top and left side of a chain for slide fastener showing our new design;
FIG. 2 is a second perspective view of the front, top and right side thereof;
FIG. 3 is a front view thereof, the rear view being mirror image 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 view thereof;
FIG. 8 is a first reference view of usage; and,
FIG. 9 is a second reference view of usage.
The broken lines shown are included for the purpose of illustrating the unclaimed portions of a slider for slide fastener and form no part of the claimed design.