| Number | Name | Date | Kind |
|---|---|---|---|
| 270555 | Ogden | Sep 1983 | |
| D280002 | Smith | Aug 1985 | |
| 283239 | Smith | Apr 1986 | |
| D289667 | Danchulis | May 1987 | |
| D289668 | Gremonprez | May 1987 | |
| 3650529 | Salm et al. | Mar 1972 | |
| 3731917 | Townsend | May 1973 | |
| 4502679 | De Lorenzo | Mar 1985 | |
| 4643418 | Bart | Feb 1987 | |
| 4792134 | Chen | Dec 1988 |
| Entry |
|---|
| Official Gazette, dated May 5, 1987, p. 623, Patent 289,667. |
| Official Gazette, dated May 5, 1987, p. 623, Patent 289,668. |