Number | Date | Country | Kind |
---|---|---|---|
1-202297 | Aug 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4018879 | Winnen | Apr 1977 | |
4031149 | Eden | Jun 1977 | |
4849561 | Franklin | Jul 1989 | |
4851597 | Felix et al. | Jul 1989 | |
5080778 | Lambert | Jan 1992 | |
5095871 | Lever et al. | Mar 1992 |
Number | Date | Country |
---|---|---|
6391128 | Apr 1988 | JPX |
2159137 | Nov 1985 | GBX |
Entry |
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Kirk Authmire: Encyclopedia f Chemical Technology, vol. 2, pp. 219, 225-226 and 233. |