Abstract: A loading and unloading apparatus adapted for use on a wheel-supported trailer body is provided. The loading and unloading apparatus comprises a plurality of elongate support arms, a plurality of channels under the floor structure of the trailer body allowing the support arms to be mounted thereon and move longitudinally between a stored position and an operating position, at least one deck panel having two opposite end edge portions and means for securing the opposite end edge portions to the support arms. The opposite end edge portions are detachably mounted on the support arms.

Abstract: Modular external antenna assemblies are configured to releaseably attach to wireless terminals and replace internal antennas.

Abstract: Clamping devices are provided with increased clamping force to firmly attach electronic devices to various objects. Clamping devices include a base, such as an electronic device housing, and a clip hinged to the base. The clip is pivotable, relative to the base, along a path of rotation between a closed position and an open position. An extension spring is configured to continuously urge the clip towards the closed position when the clip is positioned between an intermediate point along the path of rotation and the closed position, and to continuously urge the clip towards the open position when the clip is positioned between the intermediate point and the open position.