Number | Date | Country | Kind |
---|---|---|---|
63-91595 | Apr 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3354129 | Edmonds et al. | Nov 1967 | |
3987016 | Haddad et al. | Oct 1976 | |
4440915 | Asakura et al. | Apr 1984 |
Entry |
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Chemical Abstracts, vol. 86, No. 4, 1/24/77, 17308e. |
Patent Abstracts of Japan, vol. 11, No. 202 (C-432) (2649), 6/30/87. |
Translation of claims 1-3, 62-27429 Japanese KOKAI, (2/1987). |