Number | Name | Date | Kind |
---|---|---|---|
4654793 | Elrod | Mar 1987 | |
4825045 | Humble | Apr 1989 | |
4872113 | Dinerstein | Oct 1989 | |
4906826 | Spencer | Mar 1990 | |
4908761 | Tai | Mar 1990 | |
5245533 | Marshall | Sep 1993 | |
5331544 | Lu et al. | Jul 1994 | |
5430644 | Deaton et al. | Jul 1995 | |
5448471 | Deaton et al. | Sep 1995 | |
5459306 | Stein et al. | Oct 1995 | |
5478989 | Shepley | Dec 1995 | |
5493105 | Desai | Feb 1996 | |
5687322 | Deaton et al. | Nov 1997 | |
5710886 | Christensen et al. | Jan 1998 |
Entry |
---|
Lena H. Sun, "Giant to Test Supermarket Cash Rebates", The Washington Post, Section A-News DC, p. A01, Jun. 14, 1989. |
Michael Freitag, In This Computer Age, Who Needs Coupons?, New York Times, Section A, p. 1, col. 2, Jun. 15, 1989. |
Lena H. Sun, "Checking Out the Customer; New Technology Can Give Stores Detailed Knowledge About Buyers' Habits", The Washington Post, Financial Section, P. H01, Jul. 9, 1989. |