Inventor: Houbraken, Anna M. W. P.
Inventor: Koppe, Lubbertus H.
Inventor: Stemkens, Henricus G. W.
Inventor: Stemkens, Henricus G. W.
Inventor: Houbraken, Anna M. W. P.
Inventor: Stemkens, Henricus G. W.
Inventor: Stemkens, Henricus G. W.
Inventor: Akerboom, Petrus J.
Inventor: Vlielander, Ike
Inventor: Vlielander, Ike
Inventor: Vlielander, Ike
Inventor: Vlielander, Ike
Inventor: Moerman, Marcel
Inventor: van Noort, Marcus Wilhelmus Gerardus
Inventor: Bak, Elly, Steur, Nicolaas D. M.
Inventor: van Dijk, Jan, van Rosmalen, N. A. M.
Inventor: van Gaalen, Irenaeus Antonius Maria