Number | Date | Country | Kind |
---|---|---|---|
51-232 | Jan 1976 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
B416257 | Schaffner et al. | Mar 1976 | |
2671016 | Erickson et al. | Mar 1954 | |
2802032 | Prill | Aug 1957 | |
3755450 | Anderson et al. | Aug 1973 | |
3898275 | Houlihan | Aug 1975 | |
3924002 | Duennenberger et al. | Dec 1975 | |
3954875 | Swithenbank et al. | May 1976 | |
3983176 | Yamada et al. | Sep 1976 | |
4027040 | Deraedt et al. | May 1977 |
Number | Date | Country |
---|---|---|
2,553,708 | Jun 1976 | DEX |
Entry |
---|
Pews et al., J.A.C.S., vol. 89, pp. 2391-2400 (1967). |