Number | Name | Date | Kind |
---|---|---|---|
2662724 | Kravagna | Dec 1953 | |
3320972 | High et al. | May 1967 | |
3445916 | Schulte | May 1969 | |
3548417 | Kischer | Dec 1970 | |
3744062 | Parsonnet | Jul 1973 | |
3755823 | Hancock | Sep 1973 | |
3940802 | Sako et al. | Mar 1976 |
Entry |
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"Segmented Polyurethane: A Polyether Polymer", by John W. _Boretos et al., Journal of Biomedical Materials Research, vol. 2, No. 1, Mar. 1968, pp. 121-130. |