Inventor: Hall, Elsie Kazerine
Inventor: Hall, Elsie Kazerine
Inventor: Hall, Elsie Kazerine
Inventor: de Jong, Cornelis Henricus Maria
Inventor: Koning, Lammert
Inventor: Koning, Lammert
Inventor: Koning, Lammert
Inventor: Mooney, Andrew R.
Inventor: Koning, Lammert
Inventor: Davis, Harold A.
Inventor: Cevasco, Jr., Robert
Inventor: Koning, Lammert