Number | Date | Country | Kind |
---|---|---|---|
5-008080 | Jan 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3772579 | Stone et al. | Nov 1973 | |
3917989 | Bereisa, Jr. | Nov 1975 | |
4166377 | Szabo et al. | Sep 1974 | |
4522620 | Leister | Jun 1985 | |
4862749 | Yagi | Sep 1989 | |
4971522 | Butlin | Nov 1990 | |
5126641 | Putman et al. | Jun 1992 |
Number | Date | Country |
---|---|---|
60-177906 | Sep 1985 | JPX |
Entry |
---|
Industrial Application Society, vol. 110, No. 4, pp. 410-417 (1990). |