42 Design of machines, apparatus, instruments, including their parts, and systems composed of such machines, apparatus and instruments including cases of dispatch, namely, semiconductor manufacturing machines including their parts, cinematographic cameras, cameras for photography, optical condensers, optical correcting lenses for cameras, photography diaphragms, microscopy diffraction apparatus, photography filters, namely, lens filters, camera lens hoods, optical lenses for cameras, scientific and technical apparatus, namely, optical mirrors, prisms and stands for photographic apparatus, namely, camera stands; Technological advice relating to performance and operation of computers, automobiles and other machines that require high levels of personal knowledge, skill or experience of operators to meet the required accuracy in operating them including cases of dispatch, namely, semiconductor manufacturing machines including their parts, cinematographic cameras, cameras for photography, optical condensers, optical correcting lenses for cameras, photography diaphragms, microscopy diffraction apparatus, photography filters, namely, lens filters, camera lens hoods, optical lenses for cameras, scientific and technical apparatus, namely, optical mirrors, prisms and stands for photographic apparatus, namely, camera stands; Testing and research on machines, apparatus and instruments including cases of dispatch, namely, semiconductor manufacturing machines including their parts, cinematographic cameras, cameras for photography, optical condensers, optical correcting lenses for cameras, photography diaphragms, microscopy diffraction apparatus, photography filters, namely, lens filters, camera lens hoods, optical lenses for cameras, scientific and technical apparatus, namely, optical mirrors, prisms and stands for photographic apparatus, namely, camera stands