Number | Name | Date | Kind |
---|---|---|---|
2670732 | Nelson | Mar 1954 | |
3522799 | Gauthier | Aug 1970 | |
3965890 | Gauthier | Jun 1976 | |
4042232 | Lile et al. | Aug 1977 | |
4143652 | Meier et al. | Mar 1979 | |
4254763 | McCready et al. | Mar 1981 | |
4355631 | LeVahn | Oct 1982 | |
4696544 | Costella | Sep 1987 | |
4971038 | Farley | Nov 1990 | |
5025780 | Farley | Jun 1991 |
Entry |
---|
Narco Scientific Pilling Division Specification Sheet, Catalog No. 99-3027, Entitled "Pilling Retractor Systems". |