| Number | Name | Date | Kind |
|---|---|---|---|
| 4975926 | Knapp | Dec 1990 | |
| 4977618 | Allen | Dec 1990 | |
| 5175672 | Conner et al. | Dec 1992 | |
| 5247285 | Yokota et al. | Sep 1993 | |
| 5343319 | Moore | Aug 1994 | |
| 5440449 | Scheer | Aug 1995 | |
| 5519527 | Panton | May 1996 | |
| 5544011 | Blaney et al. | Aug 1996 | |
| 5548654 | Fast | Aug 1996 | |
| 5550649 | Wong et al. | Aug 1996 | |
| 5587876 | O'Brien et al. | Dec 1996 | |
| 5608606 | Blaney | Mar 1997 | |
| 5781407 | Brauel | Jul 1998 |
| Entry |
|---|
| NEC Commercial Systems, Brochure entitled: "PowerMate Systems", c Feb. 1996, Order No. D-PMFAM2-S, 819-003517-000 Rev. 00. |