A device meant to aid machine tools components, such as devices that aid in teaching: computer equipment, including Blackboard teaching aids, such as Office chairs.
The device refers to a machine tool aids trappings such as devices that help in teaching the blackboard, including computer equipment, including office equipment, such as tables and chairs.
Equipment means equipment, facilities, such as help assembly facility equipment that in teaching, including blackboard computer. Another device includes office equipment such as tables, chairs,