Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Desmond, Andrew
Inventor: Jones, Sidney James, Jones, David James
Inventor: Hofmann, Silvia
Inventor: Hofmann, Silvia
Inventor: Hofmann, Silvia
Inventor: Herdegen, Susanne
Inventor: Tristram, David Ralph
Inventor: Ernest D. Williams