Number | Date | Country | Kind |
---|---|---|---|
8505424 | Apr 1985 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
2703322 | Fox | Mar 1955 | |
2874189 | Micucci et al. | Feb 1959 | |
3072726 | Gutmann et al. | Jan 1963 |
Entry |
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Piscopo et al., Chem. Abstracts, vol. 99, (3), abst. No. 19571c, Jul. 18, 1983. |