Answered By: Aprille Nace Last Updated: Aug 26, 2016 Views: 5
For information about Robert M. Johnson's patent, take a look at the United States Patent and Trademark Office patent database:
- under "Issued Patents"
- fill in "Patent number search" with 3200471
His patent for "Apparatus for Manufacturing Electrical Components" has been scanned so the image of the patent is available online.