Number | Date | Country | Kind |
---|---|---|---|
54-139474 | Oct 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2732301 | Robertson et al. | Jan 1956 | |
3563749 | Munder et al. | Feb 1971 | |
3650756 | Ohlschlager | Mar 1972 | |
3699025 | Jenkins et al. | Oct 1972 | |
3813245 | Laridon et al. | May 1974 | |
3945831 | Satomura | Mar 1976 | |
4033773 | Lewis et al. | Jul 1977 | |
4062686 | Van Allan et al. | Dec 1977 | |
4148658 | Kondoh et al. | Apr 1979 | |
4282309 | Laridon et al. | Aug 1981 |
Number | Date | Country |
---|---|---|
7115311 | Dec 1972 | FRX |
Entry |
---|
Langford, J. F., et al., Research Disclosure, 3/1977, #15568. |