calculating-machines
publix tests calculator-equipped shopping carts for coupon savers, Jul 16, 1990
professor a.green will share his slide rules at museum's collectors day; includes list of other items being exhibited atcollectors day (picture), Jan 30, 2003
professor a.green will share his slide rules at museum's collectors day; includes list of other items being exhibited atcollectors day (picture), Jan 30, 2003
