Number | Date | Country | Kind |
---|---|---|---|
7-327367 | Dec 1995 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2439491 | Schiffl | Jun 1948 | |
3481851 | Lancy | Dec 1969 | |
3661732 | Withrow | May 1972 | |
3681212 | McKissick | Aug 1972 | |
3761381 | Yagishita | Sep 1973 | |
3839180 | Takayasu | Oct 1974 | |
3985628 | Myers | Oct 1976 | |
4006072 | Takayasu | Feb 1977 | |
4157942 | Tuznik et al. | Jun 1979 | |
5178746 | Darnall et al. | Jan 1993 | |
5200055 | Zitho | Apr 1993 | |
5223119 | Davies | Jun 1993 | |
5246559 | Bishara et al. | Sep 1993 |
Number | Date | Country |
---|---|---|
7211838 | Mar 1974 | NLX |
Entry |
---|
European Search Report and Annex, Apr. 1997. |
Chemical Abstracts, vol. 100, No. 10, Abstract No. 76319q, p. 510, XP002029192, Mar. 5, 1984. |