Number | Date | Country | Kind |
---|---|---|---|
614843 | Sep 1989 | CAX |
Number | Name | Date | Kind |
---|---|---|---|
2676089 | Wagner | Apr 1954 | |
2736636 | Day et al. | Feb 1956 | |
2871397 | Rapson | Jan 1959 | |
3058808 | Ernest | Oct 1962 | |
4325934 | Swindells et al. | Apr 1982 | |
4961918 | Novell et al. | Oct 1990 |
Number | Date | Country |
---|---|---|
434213 | Apr 1946 | CAX |
1079931 | Jun 1980 | CAX |
Entry |
---|
Fasullo, O. T., "Sulfuric Acid Use and Handling", McGraw-Hill, N.Y., 1965, pp. 119-130. |