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| US4965952 | 6 Jul 1989 | 30 Oct 1990 | | Safety plug for the firing chamber of a weapon |
| US5070635 | 20 Jun 1991 | 10 Dec 1991 | | Firing chamber safety plug |
| US5097613 | 26 Oct 1990 | 24 Mar 1992 | | Safety plug for the firing chamber of a weapon |
| US5950344 | 30 Oct 1997 | 14 Sep 1999 | | Quick-release gun lock |
| US6250008 | 10 Sep 1999 | 26 Jun 2001 | Safe Tech, Inc. | Firearm safety plug |
| US6708438 | 6 Jan 1997 | 23 Mar 2004 | | Corrosion inhibitor for firearms |
