Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed for perfecting sheets, i.e. for printing on both sides of sheets
Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed for perfecting sheets, i.e. for printing on both sides of sheets