Number | Date | Country | Kind |
---|---|---|---|
1-130431 | May 1989 | JPX | |
1-254326 | Sep 1989 | JPX | |
1-259429 | Oct 1989 | JPX | |
2-77052 | Mar 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3832254 | Bowser et al. | Aug 1974 | |
3833406 | White | Sep 1974 | |
4029830 | Yamamoto et al. | Jun 1977 | |
4317742 | Yamaji et al. | Mar 1982 | |
4380501 | Wojtowicz et al. | Apr 1983 | |
4772422 | Hijikata et al. | Sep 1988 | |
4792484 | Moritani | Dec 1988 | |
4992510 | Sugimori et al. | Feb 1991 |
Number | Date | Country |
---|---|---|
0172714 | Feb 1986 | EPX |
0225593 | Jun 1987 | EPX |
269410 | Jun 1988 | EPX |
1203458 | Oct 1965 | DEX |
Entry |
---|
Patent Abstracts of Japan, vol. 11, No. 69 (C-407) [2516], Mar. 3, 1987. |
Patent Abstracts of Japan, vol. 6, No. 191 (C-127) [1069], Sep. 30, 1982. |