| Number | Name | Date | Kind |
|---|---|---|---|
| D305726 | Halay | Jan 1990 | |
| D308052 | Darom et al. | May 1990 | |
| D329046 | Westland | Sep 1992 | |
| 3096409 | Hubbell et al. | Jul 1963 | |
| 4655057 | Derman | Apr 1987 | |
| 4907111 | Derman | Mar 1990 | |
| 4964285 | Lakoski et al. | Oct 1990 |
| Entry |
|---|
| Computer and Office Equipment Security Catalog, .COPYRGT.1990 by Secure-It, Inc., 18 Maple Court, East Longmeadow, Mass. 01028. |