Quite interesting to see his other "works": * Walking through walls training system * Internet accessible mail box system * Permanent magnet propulsion system

Quite interesting to see his other "works": * Walking through walls training system * Internet accessible mail box system * Permanent magnet propulsion system * etc... https://patents.google.com/?assignee=St+Clair+John+Q https://patents.google.com/?assignee=St+Clair+John+Q