Ober Utensili Pneumatici S.r.l.
Oefinger Richard W.
Oetlinger Frank
Oetlinger Tool Engineering Co., Inc.
Officine Mecchaniche Mario Riboldi S.N.C. di Renato, Carlo Ribol
Ohtsuki Teiichi
Okabe Jiro
Pacini Elmo J.
Palmer Nicholas J.
Paoletti Fabrizio
Parker Manufacturing Co.
Pedersen Arthur L.
Pelech, Jr. Bruno J.
Peppers Henry J.
Perez Jorge G.
Perry Heath
Persson Gert A.
Persson Hans A. H.
Pichaikannu Karthikeyan
Pocock Anthony R. H.