Number | Name | Date | Kind |
---|---|---|---|
4822986 | Guthmueller et al. | Apr 1989 | A |
5319562 | Whitehouse | Jun 1994 | A |
5420403 | Allum et al. | May 1995 | A |
5610995 | Zheng et al. | Mar 1997 | A |
5862243 | Baker et al. | Jan 1999 | A |
5867586 | Liang | Feb 1999 | A |
5889269 | Bridgelall et al. | Mar 1999 | A |
6176428 | Joseph et al. | Jan 2001 | B1 |
6266575 | Anderson, Jr. et al. | Jul 2001 | B1 |
Entry |
---|
Experian, “Experian Postal Information Network Plus Precision Electronic Tracking Tools for Marketers,” (publications date unknown), “month & year missing”. |
United States Postal Service, “Confirm Using Planet Code,” (publication date unknown), “month & year missing”. |