Teheran: Some of the 10,000 demonstrators at the rally called by the Communist constrolled National Association for the struggle against the Anglo Iranian Oil Company, held in parliment Square here in sympathy with workers on strike in the Persian oil area. Abadan, the oil refinery centre, is paralysed by the terrorist action of demonstrators. The refinary has closed down as the result of picketing, and terrorists have threateded to kill workers if they load tankers. Troops and tanks have been called out in Abadan 16 April 1951