Inventor: Ballin, Donald R.
Inventor: William L. Spandikow
Inventor: Stanley C. Johnston
Inventor: Spanbauer, Frank
Inventor: Blixen, Harris H.
Inventor: Spandikow, William L. Jr.
Inventor: Krieter, Otto A.
Inventor: Spanbauer, Frank
Inventor: Spanbauer, Frank
Inventor: Jordan, Garret L.
Inventor: Spanbauer, Frank
Inventor: Hildebrandt, John T.
Inventor: Krowka, Michael
Inventor: Witgen, Joseph E.
Inventor: Janssen, George
Inventor: Dramm, Eugene R.
Inventor: Stielow, Fred C.
Inventor: Stielow, Fred C.
Inventor: Spandikow, Wm. Jr.
Inventor: Spandikow, Wm. Jr.
Inventor: Amling, Martin C.