Inventor: Hoekstra-Arisz, Catharina Marie
Inventor: Vivies, Christian
Inventor: Quemard, Pascal
Inventor: Kolster, Peter Rudolf
Inventor: Arisz, Catharina M.
Inventor: van Leyssen, Hans
Inventor: McAfee, Jr., George
Inventor: George L. Thomas, Jr.
Inventor: George L. Thomas, Jr.
Inventor: Charles Brosius Thomas
Inventor: Charles Brosius Thomas
Inventor: Spoor, Gerald A.
Inventor: Slocum, Perry D.
Inventor: Randig, Martin E.
Inventor: Pring, George Harry