Pratt & Whitney Aircraft (4)
Aircraft Owners and Pilots Association (1)
Campbell, R. D. (1)
Coplin, John Frederik (1)
Fry, R. A. (1)
Hoyt, John Robert (1)
Isacson, Sigurd (1)
Judge, Arthur W. (1)
Karlson, Paul (1)
Keenan J.G (1)
Kelly, Fred C. (1)
Kivilahti, T. J. (1)
Kosmodemjanski, A. A. (1)
Lent, Henry Bolles (1)
Lähteenmäki, Esko (1)
Molin, K. G. (1)
Moors, Clarence John (1)
Morley, A W. (1)
Neville, Leslie E. (1)
Parmar, Hasmukhlal Amritlal (1)
Pye D.R (1)
Rinta-Opas, Alpo (1)
Schmitt, Günter (1)
Schürch, Hans (1)
Seifert, Karl-Dieter (1)
Shcürch, Hans (1)
Silsbee, Nathaniel F. (1)
Spraul, Alfred (1)
Taylor, Sydney Ernest Thomas (1)
Underdown, Roy B. (1)
United States. Flight Standards Service (1)
Valkola, Väinö (1)
Vänttinen, Tapani (1)
Welbourne, G. V. (1)
Wetter, Ernst (1)