Inventor: Duffett, William E.
Inventor: Duffett, William E.
Inventor: Duffett, William E.
Inventor: Duffett, William E.
Inventor: Winchel, Joseph F.
Inventor: Meilland, Marie L.
Inventor: Williams, Ernest D.
Inventor: Bennett, Cecilia L. D.
Inventor: Harkness, John L.
Inventor: Jolly, Betty J., Jolly, Nelson F.
Inventor: Warriner, William A.
Inventor: Warriner, William A.
Inventor: Warriner, William A.
Inventor: Kordes, Reimer, Kordes, Werner
Inventor: Warriner, William A.
Inventor: Duffett, William E.
Inventor: Duffett, William E.
Inventor: Duffett, William E.
Inventor: Bennett, Cecelia L. D.
Inventor: Christensen, Jack E.
Inventor: Warriner, William A.
Inventor: Christensen, Jack E.
Inventor: Olij, Huibert W.
Inventor: Jolly, Nelson F.
Inventor: Shoesmith, deceased, Leonard