LIONVILLE, Pa. (Nov. 20)—West Pharmaceutical Services Inc. will sell the its Lakewood, N.J.-based contract manufacturing and packaging business to DPT Lakewood Inc. for about $26 million in cash and notes. DPI—an affiliate of DPT Laboratories Ltd. and DFB Pharmaceuticals Inc. of San Antonio, Texas—also assumes liabilities of the business. West said it's selling the operation to concentrate on its core lines of productsùprincipally those related to pharmaceuticals, including some elastomer goods. The companies hope to close the deal before the end of 2001. West will use proceeds to pay down debt.