[Class : 7] Lifting And Hoisting Equipments, Elevators, Escalators And Their Components, Instant Drive Safety Gears; Progressive Drive Safety Gears, Monodirectional And Bidirectional; Overspeed Governors; Mechanical Accessories For Lifts In General, Of Different Kinds, Included In This Class, Such As Driving And Deflecting Pulleys, Supports With Sliding Blocks, Mechanical Oi...