Inventor: Howard, Fred H., Howard, Minnie J.
Inventor: Swim, Herbert C.
Inventor: McLellan, Roderick I., Morrow, Norman B.
Inventor: Howard, Fred H., Howard, Minnie J.
Inventor: Swim, Herbert C.
Inventor: Swim, Herbert C.
Inventor: Swim, Herbert C.
Inventor: Reid, Joseph P.
Inventor: Anderson, Frederic W.
Inventor: Anderson, Frederic W.
Inventor: Reedy, Perry M.
Inventor: Rusterholz, Katherine Lillian
Inventor: Swim, Herbert C.
Inventor: Duehrsen, Carl G.
Inventor: Swim, Herbert C.
Inventor: Buhrman, George H.
Inventor: Howard, Fred H., Howard, Minnie J.
Inventor: Swim, Herbert C.
Inventor: Clarke, Walter B.
Inventor: Lewis, Helen H.
Inventor: Lammerts, Walter L.
Inventor: Clarke, Walter B.