| Number | Name | Date | Kind |
|---|---|---|---|
| 4373133 | Clyne et al. | Feb 1983 | |
| 5149947 | Collins | Sep 1992 | |
| 5186281 | Jenkins | Feb 1993 | |
| 5310997 | Roach et al. | May 1994 | |
| 5311969 | Dickover et al. | May 1994 | |
| 5334821 | Campo et al. | Aug 1994 | |
| 5397882 | Van Solt | Mar 1995 | |
| 5434394 | Roach et al. | Jul 1995 | |
| 5468942 | Oosterveen et al. | Nov 1995 | |
| 5540301 | Dumont | Jul 1996 | |
| 5557088 | Shimizu et al. | Sep 1996 | |
| 5646389 | Brauman et al. | Jul 1997 |
| Entry |
|---|
| The Wireless Store, The Strategic Environment for Retailing's Future (Symbol Technologies Brochure) Jan. 1992, p. 15. |