found a PDF copy here: http://images.designworldonline.com.s3.amazonaws.com/CADhistory/85739614-The-Engineering-Design-Revolution-CAD-History.pdf http://images.

found a PDF copy here: http://images.designworldonline.com.s3.amazonaws.com/CADhistory/85739614-The-Engineering-Design-Revolution-CAD-History.pdf http://images.designworldonline.com.s3.amazonaws.com/CADhist...