Inventor: William J. Wilson, Emory Clyde Wilson
Inventor: Herman J. Heidrich, Charles F. Windham
Inventor: John F. Duke, Sr., John F. Duke, Jr., Leman P. Duke
Inventor: William R. Tucker
Inventor: Rowland, Charles A. Jr.
Inventor: Gregory, Emily Bctts
Inventor: Bartlett, Larry M.
Inventor: Chaffin, Gordon T.
Inventor: Duke, John F. Sr., Duke, Leman P.
Inventor: Wheeler, Rufus L.
Inventor: Hagler, Elizabeth Burdell
Inventor: Pearson, John W.
Inventor: Owen, Marquis A.
Inventor: Sill, Benjamin W., Sill, Mrs. Paul W.