Attachments for vehicles, namely, grapple buckets and blades for moving earth and loose objects; Cranes; Truck bed-mounted material handling machinery primarily for use in the construction materials delivery industry, namely, hydraulic extendable material conveyors, mechanical extendable material conveyors, and truck bed material lifting platforms; Truck cranes; Mobile cranes; Tractor-towed agricultural instrument grab attachments, namely, buckets, grapples and forks