A carrier management system includes a scale for weighing parcels to be shipped, a computer connected to receive data from the scale related to the weight of a parcel thereon, and a keyboard enabling operator input to the computer. The keyboard has a plurality of keys including a plurality of selection...http://www.google.com/patents/US5072397?utm_source=gb-gplus-sharePatent US5072397 - Carrier management system enabling determination of charges with discounts