Number | Date | Country | Kind |
---|---|---|---|
1-107807 | Apr 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3842033 | Brady et al. | Oct 1974 | |
4006118 | Ogawa et al. | Feb 1977 | |
4777297 | Ogawa et al. | Oct 1988 |
Number | Date | Country |
---|---|---|
57-289 | Jan 1982 | JPX |
55148144 | Oct 1987 | JPX |
Entry |
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Kirk-Othmer, Encyclopedia of Chemical Technology, Second Edition, vol. 6, pp. 484-494 (1965). |