Number | Date | Country | Kind |
---|---|---|---|
3-178780 | Jun 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4783677 | Hamada et al. | Nov 1988 | |
4969003 | Ohnuki et al. | Nov 1990 |
Number | Date | Country |
---|---|---|
0347042 | Dec 1989 | EPX |
2-146010 | Jun 1990 | JPX |
Entry |
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Patent Abstracts of Japan, vol. 9, No. 129 (P-361) Jun. 5, 1985. |
Patent Abstracts of Japan, vol. 14, No. 389 (P-1095), Aug. 22, 1990. |