| http://www.w3.org/ns/prov#value | - Those applications taken together describe techniques for three-dimensional printing or building-up and curing of a form or a mold having an arbitrary bounding surface, so that the article cast therein may be formed with complex or arbitrarily-designed surface protrusions or indentations, including protruding walls of an undercut or overhanging type which would normally be not manufacturable in mu
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