Number | Name | Date | Kind |
---|---|---|---|
3452015 | Dillard et al. | Jun 1969 | |
3479327 | Marijam et al. | Nov 1969 | |
3542778 | Dillard et al. | Nov 1970 |
Number | Date | Country |
---|---|---|
703307 | May 1969 | ZAX |
Entry |
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Chemical Abstracts, vol. 105, No. 23, Abstract: 208,706d, p. 578, Dec. 8, 1986. |