Number | Date | Country | Kind |
---|---|---|---|
60-9157 | Jan 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3746911 | Nathanson et al. | Jul 1973 | |
3886310 | Guldberg et al. | May 1975 | |
4199219 | Suzki et al. | Apr 1980 | |
4454547 | Yip et al. | Jun 1984 | |
4512625 | Brueggemann | Apr 1985 | |
4523801 | Baba et al. | Jun 1985 |
Number | Date | Country |
---|---|---|
3131227A | Feb 1983 | DEX |
Entry |
---|
Translation of the Official Letter dated Jan. 12, 1988. |