| Number | Name | Date | Kind |
|---|---|---|---|
| D156324 | Dastugue | Dec 1949 | |
| 3438675 | Seguin et al. | Apr 1969 | |
| 3554600 | Hennessey | Jan 1971 | |
| 3653715 | Drabert et al. | Apr 1972 |
| Number | Date | Country |
|---|---|---|
| 224847 | Oct 1962 | ATX |
| 3129855 | Feb 1983 | DEX |
| Entry |
|---|
| P. 540, United Statiners, 2200 East Gold Road, Des Plaines, IL 60616, Publication Date 1987. |
| P. 60, Moore Catalog, P.O. Box 20, Wheeling, IL 60090. Winter, 1986. |
| P. 27, Devoke Catalog, 500 Martin Avenue, Santa Clara, CA 95052, Summer, 1987. |
| Sell Sheet, Disconsin Corp. Business Products, 15 Court Square, Suite 100B, Boston, MA 02108. Publication Date Unknown. |