Number | Date | Country | Kind |
---|---|---|---|
706/82 | Feb 1982 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3243211 | Wetmore | Mar 1960 | |
3872573 | Nichois et al. | Mar 1975 | |
4197880 | Cordia | Apr 1980 | |
4310354 | Fountain et al. | Jan 1982 |
Number | Date | Country |
---|---|---|
2004546 | Aug 1971 | DEX |
2724539 | Nov 1978 | DEX |
7513323 | Apr 1975 | FRX |
Entry |
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Encyclopedia of Chemical Technology, 3rd ed., vol. 20, 1982. |