Inventor: Hazard, Hugh D., Hazard, Bessie A.
Inventor: Frazee, Earl Nichols
Inventor: Boerner, Eugene S.
Inventor: Graf, Alfred P.
Inventor: Jones, Charles S.
Inventor: Bates, William H.
Inventor: Parmentier, John
Inventor: Laughlin, Cowden, Laughlin, L. M.
Inventor: Mosnat, Hugo R.
Inventor: Robinson, James W.
Inventor: Donahey, Herbert W.
Inventor: Nicolas, Jean H., Nicolas, Fannie
Inventor: Shannon, Wesley F.
Inventor: Grullemans, John J.
Inventor: Roberts, Stanley B.
Inventor: Howard, Frederick H.
Inventor: Fox, Carl Burton
Inventor: Elliott, John S.