Number | Name | Date | Kind |
---|---|---|---|
2833816 | Saffer et al. | May 1958 | |
3652598 | Broadhead | Mar 1972 | |
3833546 | Takekoshi et al. | Sep 1974 | |
4526984 | Durvasula | Jul 1985 |
Entry |
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Paparinska et al., Khim Tekhnol Khim 1974, 2, 86-97 (Chemical Abstracts, 82, 124995r, 1975). |