37
[ Installation, maintenance and repair of electrical, electronic, control, testing and measuring apparatus and instruments in the field of aviation, space travel and navigation; maintenance of computer hardware, in particular in the field of aviation and space travel ]
42
Research, design and development in scientific and industrial sectors, in particular in the field of aviation and space travel, namely, drawing up expert reports with regard to aforesaid services in the field of aviation and space travel; services of engineers, namely, in the field of aviation and space travel; industrial design and drawings; material testing of tools, machines and aircrafts; research, maintenance and development of software and communication technology, except for maintenance of hardware, in particular in the field of aviation and space travel; research and development of hardware, in particular in field of aviation and space travel; consultancy in the field of computer hardware and communication technology, in particular in the field of aviation and space travel
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