Oil Air Industries, Inc.
Oilfield Production Equipment Co., Inc.
Oka Haruya
Okada Shigemitsu
Okado Yoshio
Okahashi Kazuo
Okairi Susumu
Oku Toshio
Okubo Michitomo
Okubo Naoto
Okuhara Shigeki
Okuyama Hiroshi
Oliver Michael L.
Olsen Soren B.
Olsson Bjorn Axel Roland
Olsson Lars-Uno
Oma di Baratella Paolo
Omegaflex, Inc.
Omni Plastic Products, Inc.
Omori Hideaki