Number | Date | Country | Kind |
---|---|---|---|
8624704 | Oct 1986 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3790390 | Shiba et al. | Feb 1971 | |
3901713 | Yamasue et al. | Aug 1975 | |
4288535 | Kanisawa et al. | Sep 1981 |
Number | Date | Country |
---|---|---|
602158 | May 1948 | GBX |
1015656 | Jan 1966 | GBX |
1057938 | Feb 1967 | GBX |
1306801 | Feb 1973 | GBX |
1330699 | Sep 1973 | GBX |
1351309 | Apr 1974 | GBX |
1367700 | Sep 1974 | GBX |
Entry |
---|
Research Disclosure 10801, Apr. 1973. |