Inventor: Hall, Elsie Kazerine
Inventor: Hall, Elsie Kazerine
Inventor: Hall, Elsie Kazerine
Inventor: Timmermans, Wilhelmus, Timmermans-Peters, Wilhelmina
Inventor: Koning, Lammert
Inventor: Koning, Lammert
Inventor: Koning, Lammert
Inventor: Koning, Lammert
Inventor: Cevasco, Jr., Robert
Inventor: Fairweather, Christopher
Inventor: Koning, Lammert