Number | Name | Date | Kind |
---|---|---|---|
2184303 | Jennings | Dec 1939 | |
2298443 | Weissberger | Oct 1942 | |
2359274 | Wilson | Sep 1944 | |
2407210 | Weissberger et al. | Sep 1946 | |
2875057 | McCrossen et al. | Feb 1959 | |
3265506 | Weissberger | Aug 1966 | |
3408194 | Loria | Oct 1968 | |
3415652 | Porter | Dec 1968 | |
3447928 | Loria | Jun 1969 | |
3960570 | Oishi et al. | Jun 1976 | |
4268571 | Tschopp | May 1981 | |
4362806 | Whitmore | Dec 1982 |
Number | Date | Country |
---|---|---|
2632401 | Feb 1977 | DEX |
9505 | Dec 1894 | CHX |
Entry |
---|
"Yellow-Forming Colour Couplers", Research Disclosure, pp. 90-92, Feb. 1981. |