Number | Date | Country | Kind |
---|---|---|---|
61-181844 | Aug 1986 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4224221 | Burley et al. | Sep 1980 | |
4224222 | Burley et al. | Sep 1980 | |
4530724 | Ueno et al. | Jul 1985 | |
4655844 | Ueno et al. | Apr 1987 |
Number | Date | Country |
---|---|---|
116753 | Sep 1981 | JPX |
42662 | Mar 1983 | JPX |
Entry |
---|
European Search Report dated Jan. 15, 1988. |