Engineer Daniel Billig adjusting a robotic arm used for metal grinding in a development laboratory at 3M last month in Maplewood, Minn.
This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.
We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more: