BOC GROUP COMPLETES SALE OF UNIT TO CONTROLS <BOC Group Inc>'s Airco Distributor Gases finalized the sale of its Virginia-based gas appaturs business to <Controls Corp of America>, a newly formed investment group organized by former Airco employees. Under the terms of the sale, Airco said Controls will continue to make the gas apparaturs product line under the Airco brand name, marketing the products exclusively through the Airco's distributor network.