| Number | Name | Date | Kind |
|---|---|---|---|
| 3306486 | Martino et al. | Feb 1967 | |
| 3394832 | McAllister et al. | Jul 1968 |
| Entry |
|---|
| 2 page advertisement, Recyclist by MAB Designs, 741 Garyray Drive, North York Ont. Canada M9L 1R2; 1990. |
| 1 page advertisement by Extrufix Inc., 11 Heritage Road, Markham, Ontario, Canada L3P 1M3; 1990. |
| 1 page advertisement by Feeny Manufacturing Company; 1991. |