In a postal meter adapted to be connected to a source of supply of power for energization, and having structures for printing postage values and a selected data, for displaying a plurality of segments, and for entering data, and having a computer electrically connected to each of the aforesaid structures...http://www.google.de/patents/US4635204?utm_source=gb-gplus-sharePatent US4635204 - Postal meter with date check reminder means
