Inventor: van Heesbeen, Ad
Inventor: van Heesbeen, Ad
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Babikow, Paul David
Inventor: van Heesbeen, Adrianus
Inventor: Korlipara, Harini
Inventor: Stevenson, John
Inventor: Ritchie, John Stanley, Ritchie, Kathleen Anne
Inventor: Saul, Robert Mark
Inventor: Warren, Clyde Scott
Inventor: Ernest D. Williams