Storage retrieval systems comprised of storage retrieval machines and rack entry vehicles in the nature of a device carried and positioned by the storage retrieval machine so that it can move into a rack and place or retrieve items on or from the rack; power operated lifts and retrieval machines for moving, parking and storing land vehicles; conveyors; material handling machines, namely, palletizers, automatic pallet dispensing machines, multi-depth semi-automated gravity flow storage systems comprising conveyor components for conveyance of unit loads and rack components for conveyance of unit loads and to support the gravity flow structure, and case packing machines

Electronic signaling apparatus for warehouse stock management use; computer programs for controlling distribution warehouse operations

Design and engineering in the field of material handling systems