| Number | Name | Date | Kind |
|---|---|---|---|
| 3571939 | Paul | Mar 1971 | A |
| 5369892 | Dhaemers | Dec 1994 | A |
| 5498394 | Matschke | Mar 1996 | A |
| 5546678 | Dhaemers | Aug 1996 | A |
| 6365113 | Roberts | Apr 2002 | B1 |
| 6497840 | Palestro et al. | Dec 2002 | B1 |
| Entry |
|---|
| Astro Too Surplus Electronics, The Self-Decontaminating Mailbox (SDM), Dec. 26, 2001. |