| Number | Name | Date | Kind |
|---|---|---|---|
| 858264 | Daugherty | Jun 1907 | |
| 1244404 | Ankovitz | Oct 1917 | |
| 1581953 | Jackson | Apr 1926 | |
| 2315158 | Markham | Mar 1943 | |
| 2828157 | Fox et al. | Mar 1958 | |
| 4134280 | Pelavin | Jan 1979 | |
| 4509277 | Bolton | Apr 1985 | |
| 4819465 | Stanich | Apr 1989 | |
| 4869082 | Appelbaum | Sep 1989 | |
| 4897945 | Webb | Feb 1990 | |
| 4937963 | Barnes | Jul 1990 | |
| 5003795 | Hoke | Apr 1991 | |
| 5022170 | House | Jun 1991 | |
| 5046339 | Krell | Sep 1991 | |
| 5092062 | Palka | Mar 1992 | |
| 5218846 | Cook et al. | Jun 1993 | |
| 5275028 | Giarrante | Jan 1994 | |
| 5460020 | Hungerford | Oct 1995 |
| Number | Date | Country |
|---|---|---|
| 92884 | May 1923 | ATX |
| Entry |
|---|
| Popular Science, Aug. 1960, p. 159, Rubber Shield for Padlocks. |