Olshansky Tsementny Kombinat
Olson Bradford A.
Olson Dean P.
Olson James
Olsson Lars-Inge
Olstad Paul H.
Olver John W.
Omori Mamoru
Onizuka Koji
Ono Takashi
Ono Takuro
Ono Yoshizo
Onoda Cement Co. Ltd.
Onoda Chemical Industry Company
Onozawa Teruo
Oohara Shozo
Opalsky Hans
Oplachko Nikolai T.
Opsommer Ann
Optos Optimale Oszillationstechnik Gmbh