Inventors:
Wilhelm Rademacher - Limburgerhof, DE
John Harden - Raleigh NC, US
Dan Westberg - Cary NC, US
Joseph Zawierucha - Cary NC, US
Thomas Holt - Holly Springs NC, US
Hendrik Ypema - Cary NC, US
Ted Bardinelli - Durham NC, US
Albert Everson - Cary NC, US
Edson Begliomini - Sao Paulo, BR