Olivetti (ing. C.) And C.s.p.a.
Olson Nels L.
Onder Harald
One Plus Corp.
Optimum Filtration Inc.
Ordway Joseph H.
Orita Naoki
Orser Lawrence D.
Osada Kohji
Otremba Carsten
Otsuka Tsuruo
Oy Sne Environment Engineering Ltd.
Package Machinery Company
Packmat System
Padula Filippo D.
Pagels Donald D.
Pagnoni Franco
Paier Gerhard
Palmer Robert E.
Palmer Russell W.