Number | Name | Date | Kind |
---|---|---|---|
1732905 | Morgen et al. | Oct 1929 | |
3752875 | O'Hern et al. | Aug 1973 | |
3935100 | Alagy et al. | Jan 1976 |
Number | Date | Country |
---|---|---|
2,198,744 | Apr 1974 | FR |
913,889 | Jun 1954 | DT |
46,255 | Jul 1970 | JA |
210,434 | Apr 1925 | UK |
Entry |
---|
"Acta Chimica" Academy of Science of Hungary, Budapest, 1953; pp. 130-138. |