	diagnostic drs makes a bid for rospatch rpch diagnostic retrieval systems inc said it has made an offer to uire through a wholly owned unit all outstanding shares of rospatch corp s common stock for dlrs a share cash or about mln dlrs drs a warfare systems producer said it would make the transaction through a cash tender offer for all but not less than pct of rospatch s outstanding common stock followed by a merger with rospatch a labels high technology and wood producer at the same purchase price per share drs said the deal is subject to approval by the rospatch board and the tender offer expires on march reuter 
