Number | Name | Date | Kind |
---|---|---|---|
2602596 | Jones et al. | Jul 1952 | |
3556414 | Eberly | Jan 1971 | |
3773468 | Hubbard et al. | Nov 1973 | |
4307846 | Spelsberg | Dec 1981 | |
4505433 | Selenke | Mar 1985 | |
4715545 | Hanifl et al. | Dec 1987 | |
4828395 | Saito et al. | May 1989 | |
5533683 | Fay et al. | Jul 1996 |
Entry |
---|
Ultem Design Guide (undated) pp. 3, 8-21. |