	national guardian natg o uires alarm firm greenwich conn national guardian corp said it uired pacific fire extinguisher co which specializes in installation of fire and burglar alarms the operations uired in the transaction have total revenues in excess of mln dlrs the company said in a separate announcement the company said it expects to record revenues of approximately mln dlrs for for the company had revenues of mln dlrs national guardian s revenues for the first six months of were approximately mln dlrs compared to about mln dlrs the year ago period reuter 
