| Number | Name | Date | Kind |
|---|---|---|---|
| 1964655 | Williamson | Jun 1934 | |
| 3491761 | Baker | Jan 1970 | |
| 4044773 | Baldwin | Aug 1977 | |
| 4190054 | Brennan | Feb 1980 | |
| 4326533 | Henderson | Apr 1982 | |
| 4347848 | Hubbard et al. | Sep 1982 | |
| 4523353 | Hubbard et al. | Jun 1985 | |
| 4527566 | Abare | Jul 1985 | |
| 4688572 | Hubbard et al. | Aug 1987 | |
| 4805620 | Meistrell | Feb 1989 | |
| 4835950 | Hubbard et al. | May 1983 |
| Entry |
|---|
| "Omnipak" (Advertisement) 6/82. |