Number | Date | Country | Kind |
---|---|---|---|
2721425 | May 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2731458 | Garwood et al. | Jan 1956 | |
3079311 | Hettinger | Feb 1963 | |
3099690 | Rayhut | Jul 1963 | |
3760001 | Staendeke | Sep 1973 | |
3855311 | Staendeke | Dec 1974 | |
4052463 | Uhin et al. | Oct 1977 |
Entry |
---|
Chemical Abstracts, 67, 108715j (1967). |