Elisha Perkins Invented Metallic Tractors – in the 1700s?
By Thomas Jay Kemp on May 28, 2015
An article about Dr. Elisha Perkins and his invention of the "metal tractor" medical device... (Read More)
Tag: Medical Devises
An article about Dr. Elisha Perkins and his invention of the "metal tractor" medical device... (Read More)
Get Helpful, Usable Tips for Your Genealogy Research.
Get Helpful, Usable Tips for Your Genealogy Research.