Number | Name | Date | Kind |
---|---|---|---|
3681476 | Gutman | Aug 1972 | |
4232010 | Tsukamoto et al. | Nov 1980 | |
4268507 | Mong | May 1981 | |
4309364 | Bentzen et al. | Jan 1982 | |
4371527 | Bentzen et al. | Feb 1983 | |
4416877 | Bentzen et al. | Nov 1983 | |
4626528 | McHenry | Dec 1986 |
Number | Date | Country |
---|---|---|
151199 | Jul 1986 | JPX |
Entry |
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Journal of American Chemical Society, vol. 95(7) p. 2362 (1973) and vol. 98(16) p. 4913 (1976). |