Onda Nico
Onda Nobuhiko
Onoda Seiichi
Ontario Laser And Lightwave Research Centre
Opto Industrie
Oreper Boris
Orio John H.
Ormond Alfred N.
Ornholmer Lars
Osborne Joseph J.
Ostman Leif T.
Ostman Thomas
Otkrytoe Aktsionernoe Obschestvo 'aeropribor-Voskhod'
Otsuka Hirofumi
Ouellet Daniel
Ouellet Joseph Rolland Daniel