Number | Date | Country | Kind |
---|---|---|---|
3-314073 | Oct 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2368640 | Cook | Feb 1945 | |
3024199 | Pasfield | Mar 1962 | |
4889705 | Gosser | Dec 1989 | |
5080877 | Chane-Ching et al. | Jan 1992 | |
5135731 | Gosser et al. | Aug 1992 |
Number | Date | Country |
---|---|---|
0274830 | Jul 1988 | EPX |
0431932 | Jun 1991 | EPX |
Entry |
---|
Chemical Abstracts 117(24):236704t (1993). |
Database WPIL Week 9241, Derwent Publications Ltd., London, GB; AN 92-335296/41 & JP-A-4 238 802 (Mitsubishi Gas Chem. Co., Inc., Aug. 26, 1992). |