Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Goemans, Francis Cornelius
Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Goemans, Francis Cornelius
Inventor: Eveleens, Peter
Inventor: Eveleens, Peter
Inventor: Jacobs, Henricus Cornelius Maria