Number | Date | Country | Kind |
---|---|---|---|
63-203025 | Aug 1988 | JPX | |
1-107011 | Apr 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3700455 | Ishikawa et al. | Oct 1972 | |
4675275 | Nishijima et al. | Jun 1987 | |
4748100 | Umemoto et al. | May 1988 | |
4895793 | Seto et al. | Jan 1990 |
Number | Date | Country |
---|---|---|
0167762 | Jan 1986 | EPX |
207794 | Jan 1987 | EPX |
2135788 | Sep 1984 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 11, No. 203 (P-591)(2660), Jul. 2, 1987. |