| Number | Name | Date | Kind |
|---|---|---|---|
| D108646 | LaVallee | Mar 1938 | |
| D271297 | Johnson | Nov 1983 | |
| D288557 | DuBois | Mar 1987 | |
| D288801 | Marshall | Mar 1987 | |
| D290598 | Jaffe et al. | Jun 1987 | |
| D290836 | Oesterheld et al. | Jul 1987 | |
| 3900767 | Person | Aug 1975 | |
| 4600960 | Clark | Jul 1986 | |
| 4794485 | Bennett | Dec 1988 | |
| 5089929 | Hilland | Feb 1992 | |
| 5191605 | Bower | Mar 1993 |
| Entry |
|---|
| Voltage supperssors on p. 65 of Electrical Design 4/30/97. |
| P. 11, Square D--Powerlink as Remote Power Switching System QO(B)-AS Circuit Breakers Square-D Product Catalog, 4-93. |