Inventor: Greyvenstein, Ockert F. C.
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: de Jong, Cornelis Henricus Maria
Inventor: Membrey, Stephen, Jackson, Bryan
Inventor: Stemkens, Henricus G. W.
Inventor: Mooney, Andrew R.
Inventor: Davis, Harold A.
Inventor: Unger, Christiaan
Inventor: Unger, Michael Helmet
Inventor: Rother, Reinhard W.