| Number | Name | Date | Kind |
|---|---|---|---|
| D195699 | Bostrom | Jul 1963 | |
| D345912 | Krupa | Apr 1994 | |
| D346554 | Krupa | May 1994 | |
| D349050 | Krupa | Jul 1994 | |
| D374820 | Knoss et al. | Oct 1996 | |
| 4359159 | Pollard | Nov 1982 | |
| 4867303 | Beckerman et al. | Sep 1989 | |
| 4874083 | Antoni et al. | Oct 1989 | |
| 5613607 | Kalmanides et al. | Mar 1997 |
| Entry |
|---|
| Ultra Pac Bakery Container, p. 1, Mar. 1995. |