Number | Date | Country | Kind |
---|---|---|---|
2-103888 | Apr 1990 | JPX | |
2-259696 | Sep 1990 | JPX | |
2-292659 | Oct 1990 | JPX | |
3-100534 | Apr 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3530167 | Dowbenko | Sep 1970 | |
3625926 | Dowbenko | Dec 1971 | |
3842019 | Kropp | Oct 1974 | |
4271277 | Golownia | Jun 1981 | |
4581436 | Corley | Apr 1986 |
Number | Date | Country |
---|---|---|
0318880 | Jun 1989 | EPX |
855864 | Nov 1952 | DEX |
1089271 | Nov 1967 | GBX |
2011423 | Jul 1979 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 14, No. 211 (C-071) May 2, 1990, of JP 2-047119, Feb. 16, 1990. |
Methoden der Organischen chemie (Houben-/weyl) 1965 vol. VI/3 Sauerstoffverbindungen I part 3, pp. 229-230 and 286-287. |