FIG. 1 is an upper front perspective view of a kitchen sink, showing the novel design, wherein the sink has a terrace structure within a bowl of the sink;
FIG. 2 is a top view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 3 is a bottom view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 4 is a front view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 5 is a rear view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 6 is a side view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 7 is a side view of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink;
FIG. 8 is a cross-sectional view along sectional line 8 of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink; and,
FIG. 9 is a cross-sectional view along sectional line 9 of the kitchen sink shown in FIG. 1, wherein the sink has a terrace structure within the bowl of the sink.
The matter delineated in broken lines forms no part of the claimed ornamental design.