Number | Date | Country | Kind |
---|---|---|---|
2716896 | Apr 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2120392 | Calkins | Jun 1938 | |
2168260 | Heisel et al. | Aug 1939 | |
2235562 | Rahrs | Mar 1941 | |
2243484 | Morey | May 1941 | |
3397240 | Kaufman et al. | Aug 1968 |
Entry |
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Fujira, Chem. Abst., vol. 53, #5185d, (1959). |
Hill et al., J.A.C.S., vol. 55, pp. 2509-2512, (1933). |