Number | Date | Country | Kind |
---|---|---|---|
2842539 | Sep 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2733254 | Allen et al. | Jan 1956 | |
3607903 | Csuros et al. | Sep 1971 | |
3641094 | Arlt et al. | Feb 1972 | |
3781320 | Irwin | Dec 1973 | |
3993677 | Asato | Sep 1976 |
Number | Date | Country |
---|---|---|
224490 | Mar 1909 | DE2 |
231853 | May 1909 | DE2 |
695646 | Aug 1940 | DE2 |
Entry |
---|
Anthracene and Arthraquinone, pp. 219-222, Barnett, Van Nostrand Co., New York, N.Y., 1921. |