BASS GROUP HAS STAKE IN BELL AND HOWELL <BHW> An investor group led by Robert Bass of Fort Worth, Texas said it owns 786,800 shares of Bell and Howell Co common stock, equal to 8.9 pct of the company's common stock outstanding. In a filing with the Securities and Exchange Commission, the group said it purchased 511,500 Bell and Howell common shares between April 29 and June 26 at 44.25 dlrs to 56.02 dlrs a share. The stock was acquired for investment purposes, the group said, adding it may purchase or sell additional shares in the future.