Inventor: van Opstal, Ronnie Adrianus Antonius
Inventor: Hop, Margareth E. C. M.
Inventor: Yencho, George Craig, Pecota, Kenneth
Inventor: Yencho, George Craig, Pecota, Kenneth
Inventor: Yencho, George Craig, Pecota, Kenneth
Inventor: Yencho, George Craig, Pecota, Kenneth
Inventor: Yencho, George Craig, Pecota, Kenneth
Inventor: Yencho, G. Craig, Pecota, Kenneth