Number | Name | Date | Kind |
---|---|---|---|
3081151 | Marty | Mar 1963 | |
3086844 | Beltz et al. | Apr 1963 | |
3409392 | Shaver | Nov 1968 | |
3764655 | Ehlers et al. | Oct 1973 | |
4112118 | Cussons et al. | Sep 1978 |
Number | Date | Country |
---|---|---|
886217 | Jan 1962 | GBX |
Entry |
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Hou, Manufacture of Soda, Second Edition, Reinhold Publishing Corp., (1942), p. 182. |
Babor, Basic College Chemistry, Second Edition, Thomas Y. Crowell Co., (1953), pp. 255-257. |