Number | Name | Date | Kind |
---|---|---|---|
3063966 | Kwolek et al. | Nov 1962 | |
3560137 | Hahn | Feb 1971 | |
3671542 | Kwolek | Jun 1972 | |
3767756 | Blades | Oct 1973 | |
3869429 | Blades | Mar 1975 | |
3869430 | Blades | Apr 1975 |
Entry |
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The Condensed Chemical Dictionary, Eighth Edition, 1971, p. 448. |