Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Madsen, Christian Hald
Inventor: Khemakongkanond, Kanchana
Inventor: Madsen, Christian Hald
Inventor: Doyle, James, Ferguson, Louise
Inventor: Plattner, Anton
Inventor: Albert Aspeslagh, August van Speybrouck
Inventor: Vosters, James B.