Number | Date | Country | Kind |
---|---|---|---|
30485/73 | Oct 1973 | IT |
Number | Name | Date | Kind |
---|---|---|---|
3054768 | Quinn | Sep 1962 | |
3201364 | Salyer | Aug 1965 | |
3709806 | Minami et al. | Jan 1973 | |
3797690 | Taylor et al. | Mar 1974 |
Number | Date | Country |
---|---|---|
46-38686 | Nov 1971 | JA |
Entry |
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Br. Polymer Journal, 1970, vol. 2, pp. 217-221, Fitton et al. |