The solid lines along smooth transitions between surfaces (e.g., at tangential transitions between curved and flat surfaces or between smoothly connecting curved surfaces) show contour and not surface ornamentation.
The dashed broken lines in the figures show portions of the component of a construction set that form no part of the claimed design.
The dot-dash broken lines in the figures show boundaries that form no part of the claimed design.
The component of a construction set is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.