IC 009. US 021 023 026 036 038. G & S: computer hardware; computer software for use in the layer-wise generative manufacture of parts, prototypes, models, moulds and tools and other three-dimensional objects by laser sintering machines
IC 042. US 100 101. G & S: engineering and computer programming for others, in particular, in the field of the manufacture and processing of parts, prototypes, models, moulds and tools, and other three-dimensional objects manufactured using a generative manufacturing process
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