Inventor: Ault, James Robert
Inventor: Ault, James Robert
Inventor: Jamieson, Richard
Inventor: Fulcher, Richard John
Inventor: Jacobs, Henricus Cornelius Maria
Inventor: Lambert, Harold
Inventor: Craigie, John Maxwell
Inventor: Tidmore, Ronald D.
Inventor: Jensen, Bent Juhl
Inventor: McElrea, Laurence E.