Number | Date | Country | Kind |
---|---|---|---|
6-160214 | Jul 1994 | JPX | |
7-040339 | Feb 1995 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3551747 | Joslyn | Dec 1970 | |
4169990 | Ledman | Oct 1979 | |
5450756 | Kirii et al. | Sep 1995 |
Number | Date | Country |
---|---|---|
422529 | Apr 1991 | EPX |
3842426 | Jun 1990 | DEX |
6-54591 | Feb 1994 | JPX |
Entry |
---|
Patent Abstract of Japan, vol. 15, No. 49 (M-1078) Nov. 1990 re JP-A-02-283837. |