7 Marine equipment for use in marine environments, namely, mooring and tensioning equipment, namely, hydraulically powered linear chain jacks for use in mooring offshore vessels; shiplift and transfer systems composed of hydraulically powered chain jacks for lifting platforms and ships; launch and recovery systems, namely, hydraulically powered jacks for use in launching and recovering floating structures; pipeline handling systems, namely, hydraulically powered jacks for lifting pipeline; skidding systems composed of hydraulically powered jacks; load lifting and handling equipment, namely, powered carts, cranes, and hoists; restraining and leveling systems, namely, hydraulically powered jacks for securing and leveling platforms, namely, power operated gripper jacks; and power operated linear chain jacks