Number | Name | Date | Kind |
---|---|---|---|
984312 | Stiegelmann et al. | Feb 1911 | |
1710310 | Helwig | Apr 1929 | |
2970114 | Bragdon | Jan 1961 | |
3167515 | Hinckley et al. | Jan 1965 | |
3259457 | Sauls et al. | Jul 1966 | |
3536445 | Hansley et al. | Oct 1970 | |
3538012 | Goerrig | Nov 1970 | |
3653804 | Janson et al. | Apr 1972 | |
3669895 | Shastri | Jun 1972 | |
3773679 | Kise et al. | Nov 1973 | |
3804944 | Kise et al. | Apr 1974 |
Entry |
---|
Chemical Abstracts, Vol. 67, No. 65581t (1967). |