Number | Name | Date | Kind |
---|---|---|---|
2794790 | Marshall et al. | Jun 1957 | |
2849314 | Goss | Aug 1958 | |
3597375 | Ludwig et al. | Aug 1971 | |
3658638 | Ludwig et al. | Apr 1972 | |
3686119 | Markham et al. | Aug 1972 | |
3759826 | Felicetta et al. | Sep 1973 | |
3886101 | Felicetta et al. | May 1975 | |
3935139 | Ashall | Jan 1976 | |
3956207 | Blackmore et al. | May 1976 |
Entry |
---|
A.B.I.P.C. 42, No. 7, 6783 (Jan. 1972). |
A.B.I.P.C. 45, No. 1, 401 (Jul. 1974). |