Inventor: Prukngen, Somchai
Inventor: Jamieson, Richard
Inventor: Fulcher, Richard John
Inventor: Prukngen, Somchai
Inventor: Harbage, James F.
Inventor: Lambert, Harold
Inventor: Craigie, John Maxwell
Inventor: Tidmore, Ronald D.
Inventor: Hansen, Hans A.
Inventor: McElrea, Laurence E.