Number | Name | Date | Kind |
---|---|---|---|
4139194 | Fischer | Feb 1979 | A |
4360202 | Lo | Nov 1982 | A |
4609198 | Tarr | Sep 1986 | A |
4906002 | Goffney et al. | Mar 1990 | A |
4915382 | Madsen | Apr 1990 | A |
4988100 | Shu et al. | Jan 1991 | A |
5560600 | FitzSimons et al. | Oct 1996 | A |
6071203 | Janes et al. | Jun 2000 | A |
Number | Date | Country |
---|---|---|
3521621 | Jan 1986 | DE |
3923268 | Jan 1991 | DE |
130620 | Jan 1985 | EP |
519312 | Dec 1992 | EP |
531806 | Mar 1993 | EP |
8604251 | Jul 1986 | WO |
Entry |
---|
“The ISIS System” from 1992 Catalog of Dunlop Slazenger Corporation. |
“ISIS—Impact Shock Isolation System” from Dunlop 1994 Tennis Catalog. |