Inventors:
Patricia Stewart - Pittsburgh PA, US
Ray Richter - Murrysville PA, US
Thomas Kasun - Export PA, US
Joseph Laemmle - Delmont PA, US
Nickolas Kotow - Bethel Park PA, US
David DeYoung - Export PA, US
J. Kirby - Delmont PA, US
Alvaro Giron - Murrysville PA, US
Raymond Colbert - Pittsburgh PA, US
Larry Wieserman - Apollo PA, US