| http://www.w3.org/ns/prov#value | - Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4912644Jun 1, 1989Mar 27, 1990Oki Electric Industry Co., Ltd.Method of and apparatus for unfolding a sheet metal part employing a CAD apparatusUS5029462Aug 4, 1989Jul 9, 1991Amada Company, LimitedMethod of bending a workpiece including setting a bending process, and preparing bending dataUS5089970Oct 5, 1989Feb 18, 1992Combusti
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