9
Scientific, weighing, measuring, testing, controlling, regulating, signalling, switching, transmitting, registering and checking (supervision) apparatus and instruments; electrical and electronic data recording, processing, relaying, storage and output apparatus; electricity meters; apparatus and instruments for the technical equipping of buildings, namely for the recording, calculating, analysis, billing and management of gas, water, electricity and heat generation and consumption
38
Rental of telecommunications apparatus and equipment
42
Engineering services; technical consultancy and providing of expertise; technical planning and design of apparatus and installations; rental of electrical appliances, included in class 42; rental of data processing apparatus and instruments, computers, and peripheral equipment therefor; rental of electronic testing equipment and apparatus