Number | Name | Date | Kind |
---|---|---|---|
3511787 | Bertorelli et al. | May 1970 | |
3855160 | Shiotsu et al. | Dec 1974 | |
3939237 | Naito et al. | Feb 1976 | |
3959197 | Salyer et al. | May 1976 | |
4029612 | Collington | Jun 1977 | |
4065401 | Cohnen et al. | Dec 1977 |
Entry |
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"Ency. of Chem. Tech.", Kirk-Othmer, (1966), 2nd Ed., vol. 10, pp. 541-544. |