The ninth category mainly includes

Science, navigation, geodesy, photography, film, optics, weighing tools, measuring tools, signals, inspection (supervision), rescue (rescue) and teaching Appliances and instruments;

Apparatus and apparatus for processing, switching, transmitting, accumulating, regulating or controlling electricity

Apparatus for recording, communicating and reproducing sounds and images, magnetic data carriers, Recording disks,

Automatic vending machines and coin-operated actuators and mechanical structures of coin-operated actuators, cash recording machines, computers and data processing apparatus, fire-extinguishing apparatus. It also includes many subcategories, Bajie Intellectual Property