| Number | Date | Country | Kind |
|---|---|---|---|
| 900932 | Apr 1990 | SEX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D231318 | James | Apr 1974 | |
| D294295 | Br.ANG.nemark | Feb 1988 | |
| 1639782 | Nies | Aug 1927 | |
| 1726130 | Trusler | Aug 1929 | |
| 2766527 | Vines et al. | Oct 1956 | |
| 4163318 | Tigani | Aug 1979 | |
| 4850870 | Lazzara et al. | Jul 1989 | |
| 4856994 | Lazzara et al. | Aug 1989 | |
| 4995810 | Soderberg | Feb 1991 | |
| 5030096 | Hurson et al. | Jul 1991 |
| Entry |
|---|
| Plastics Stock Molds, Control and Instruments Knob Item U, p. 1400, 1948. |
| Dimco Plastic Knobs, p. 8, handbook 79, Sep. 5, 1980. |