Number | Date | Country | Kind |
---|---|---|---|
2-231162 | Aug 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3849660 | Hommerin | Nov 1974 | |
4965628 | Olliver et al. | Oct 1990 |
Number | Date | Country |
---|---|---|
0300729A2 | Jan 1989 | EPX |
0432722 | Jun 1991 | EPX |
61-32003 | Feb 1986 | JPX |
61-80106 | Apr 1986 | JPX |
62-3250 | Jan 1987 | JPX |
62-123454 | Jun 1987 | JPX |
2-68544 | Mar 1990 | JPX |
Entry |
---|
Patent Abstracts of Japan, vol. 13, No. 167, (P-861), Apr. 20, 1989, referring to JP-A-1003731, Jan. 9, 1989. |