John Hopps
John D Rockefeller did not invent anything. He owned the Oil Industry being very successful
the clutch
AIRSHIP
john Patterson invented the cash register
John Hopps died in 2004.
John Alexander Hopps was born on 1919-05-21.
John Alexander Hopps was born on 1919-05-21.
John Hopps is a medical researcher from Canada who is noted as inventing the artificial pacemaker. There are several places on the internet with information and pictures of John Hopps. One site is MSN that has an article and photo of him.
elizabeth and Jefrey
Winnipeg, Canada
John Hopps
John Hopps
John Hopps
John hopps invented the first external pacemaker. Later Earl Bakken improved this pacemaker by making it battery powered. And then Wilson Greatbatch invented the first implantable pacemaker!
Ian Hopps is 5' 8".
Vicki Hopps was born in 1970, in UK.