Advisory services relating to design engineering; Advisory services relating to industrial engineering; Assessment in the field of technology provided by engineers; Consultancy services relating to product engineering; Engineering consultancy; Engineering design services; Engineering feasibility studies; Engineering services for the analysis of structures; Engineering services for the design of structures; Engineering services in the field of motive power and drive technology; Engineering services relating to energy supply systems and power conversion; Mechanical engineering; Research in the field of technology provided by engineers; Research in the field of science provided by engineers; Technical project planning in the field of engineering; Analysis of materials; Chemical research; Chemical analysis; Research in the field of physics; Research and development services in connection with physics; Advisory services relating to material testing; Conformance testing services; Consumer product safety testing; Safety testing of products; Testing of materials; Design and testing of new products; Design of land; sea or air vehicle parts; Design of vehicles and vehicle parts and components; All of the aforementioned services in particular in the field of or related to current generators, fuel cells and components for fuel cells