| Number | Name | Date | Kind |
|---|---|---|---|
| D199252 | Murphy | Sep 1964 | |
| D246159 | Podall | Oct 1977 | |
| D256336 | Odom et al. | Aug 1980 | |
| D265553 | Joss et al. | Jul 1982 | |
| D278415 | Fenne | Apr 1985 | |
| D282826 | Hoogner | Mar 1986 | |
| D282827 | Hoogner | Mar 1986 | |
| D285419 | Schwartz | Sep 1986 | |
| 3215999 | Dawson | Nov 1965 | |
| 3249931 | Leitton | Mar 1966 | |
| 3949241 | Maute | Apr 1976 | |
| 3989913 | Lundquist | Nov 1976 | |
| 4259618 | Nilsson | Mar 1981 | |
| 4349748 | Goldstein et al. | Sep 1982 | |
| 4354120 | Schornack | Oct 1982 | |
| 4382688 | Machamer | May 1983 | |
| 4494012 | Coker | Jan 1985 |
| Number | Date | Country |
|---|---|---|
| 3223313 | Jun 1982 | DEX |
| Entry |
|---|
| European Jeweler-5/75-p. 72-Timer at top. |
| European Jeweler-9/77-p. 122-Timer at top. |
| Flyer on Security Switch by Diablo Technologies, Inc. |