Number | Name | Date | Kind |
---|---|---|---|
3309214 | Podschus et al. | Mar 1967 | |
3434855 | Webb | Mar 1969 | |
3775595 | Rosse et al. | Nov 1973 | |
4014709 | Dykstra et al. | Mar 1977 | |
5011534 | Berube et al. | Apr 1991 | |
5047375 | Dunaway et al. | Sep 1991 |
Number | Date | Country |
---|---|---|
350049 | Jul 1989 | EPX |
356250 | Aug 1989 | EPX |
Entry |
---|
Hawleys Condensed Chemical Dictionary Eleventh Edition. Sax et al., 1987 p. 724. |