The board of directors of Butterworth System, Incorporated, Bayonne, N.J., has elected Harland R. DeWitt to the office of vice-president-sales.

Mr. DeWitt will continue to serve as sales manager of the Marine Sales Department of Esso International, Inc. He has accepted his new office in order to assist Butterworth in the introduction of a wide range of newly developed marine operation and maintenance products worldwide to dry cargo, passenger and tanker fleets.

Butterworth System, Inc. and its affiliate in the United Kingdom, J. G. Edmiston & Co., Ltd., is well-known for such products as the Butterworth (SEREP) oil/water separator; the Lav-Jet; their Type K and Super K tank cleaning machines and the SCAMP (Submerged Cleaning and Maintenance Platform).