Number | Date | Country | Kind |
---|---|---|---|
44 38 563.3 | Oct 1994 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3852087 | Nordyke | Dec 1974 | |
3900620 | Gilman | Aug 1975 | |
3930074 | Drelich | Dec 1975 | |
4061720 | Phillips | Dec 1977 | |
4966948 | Godbey | Oct 1990 | |
5149729 | Englund | Sep 1992 |
Number | Date | Country |
---|---|---|
234779 | Oct 1991 | JPX |
320565 | Dec 1993 | JPX |
Entry |
---|
Hawley's Condensed Chemical Dictionary pp. 461, 1108 12th Edition. |