Ovakimian Aram R.
Ovdienko Yaroslav A.
Over John E.
Overbeek Gerhard A.
Overbeek Wilhelmus R. M.
Overhults Wendell C.
Overley John R.
Overwien Hermann
Owen John R.
Owen Peter W.
Owens Frederick H.
Ownby James C.
Owsley Dennis C.
Oxamine, Inc.
Oxford Alexander William
Oxirane Chemical Co.
Oxirane Corporation
Oxon Italia S.p.A.
Oy Kaukas AB
OY Kaukus AB