Peter Lynwander
F. L. Litvin
American Gear Manufacturers Association.
James Ritchey
Brian W. Cluff
Alfred W. Marshall
Swinfen Bramley-Moore
George Thomas White
W. Steeds
Charles H. Logue
F. J. Camm
Robert S. Woodbury
Charles C. Stutz
Henry Edward Merritt
James D. Halderman
Lee Woas
Unknown Author
Bill Morris
British Gear Association.
Darle W. Dudley