Inventor: Hazard, Hugh D., Hazard, Bessie A.
Inventor: Frazee, Earl Nichols
Inventor: Jones, Charles S.
Inventor: Bates, William H.
Inventor: Robinson, James W.
Inventor: Howard, Frederick H.
Inventor: Reinecke, J. M.
Inventor: Dillon, Glenn O.
Inventor: Weaver, George Washington, Weaver, Annar Lee