Dị ka mkpa ndị ahịa si dị, dị iche iche nkọwa nke Gilbert ebuli n'elu ikpo okwu ụgbọ ala, Gilbert ebuli hydraulic nyiwe, Gilbert hydraulic ikpo okwu lifts, Gilbert ụgbọ-n'ịnyịnya ikuku ọrụ nyiwe nwere ike ahaziri.Nabata ọhụrụ na ochie ahịa na bia kparita uka.