Abstract: The shoe has a permanently affixed heel plate attached to the bottom of the heel support portion of the shoe. This heel plate contains a mortise having a decreasing transverse width from the front to the rear of the heel plate. A replaceable heel having a flat surface on one side and a dovetail on the reverse surface corresponding in shape to the opening in the mortise is slid into the mortise to be firmly seat by a friction fit on the heel plate.

Abstract: A protective package for use with a printed circuit board having mounted thereon at least one semiconductive device susceptible to deleterious effects of variance of potential across the terminals of the device or the presence of static electric discharges. The package provides, in one embodiment, a single piece, insulating case supporting and enclosing the entire circuit board and its components and a shorting member having integrally formed, spring biased contact fingers in normal engagement with the termination pads of the board. The contact fingers are separable from engagement with the termination pads upon insertion of the circuit board into an edge connector. Another illustrated embodiment provides a holder or support for a shorting member which may enclose only a portion of a printed circuit board and only a portion including termination pads.