Number | Date | Country | Kind |
---|---|---|---|
2-159553 | Jun 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4072552 | Ewing | Feb 1978 | |
4193694 | Smith | Mar 1980 | |
4418284 | Ogawa et al. | Nov 1983 | |
4661191 | Kamio et al. | Apr 1987 | |
4685200 | Bokil | Aug 1987 | |
4976802 | LeBlanc | Dec 1990 |
Number | Date | Country |
---|---|---|
203143 | Feb 1989 | JPX |
4-76942 | Mar 1992 | JPX |
Entry |
---|
Hackh's Chemical Dictionary, 4th ed., McGraw-Hill Book Co., 1969, p. 298. |