Three New York investment groups have pooled...

Three New York investment groups have pooled their stock in Dataproducts, a Woodland Hills company, in hopes of acquiring the struggling computer printer concern. DPC Acquisition Partners said it owns 6.9% of Dataproducts shares. DPC now includes the New York investment group led by John K. Castle, former president of the Wall Street investment firm Donaldson, Lufkin & Jenrette, which in December bought 5.2% of Dataproducts’ stock. A DPC spokesman said the newly formed group hopes to acquire Dataproducts, whether in a friendly or an unfriendly deal.