Inventor: Howard, Frederick Huber
Inventor: Verschuren, Jac
Inventor: Polk, George L.
Inventor: Hansen, Niels J.
Inventor: Owens, Hiram H.
Inventor: Bosley, Edith C.
Inventor: Lodge, George C.
Inventor: Swim, Herbert C.
Inventor: Peirce, Elisha Allan
Inventor: Boerner, Eugene S.