| http://www.w3.org/ns/prov#value | - a support structure, said support structure including a base, a first support member pivotable about a longitudinal axis thereof in said base, and a second elongated support member attached to said first support member and extending transversely therefrom; a laser configured to generate a laser beam; an articulated arm including a first tubular member, a second tubular a second tubular member, and
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