Number | Date | Country | Kind |
---|---|---|---|
2-36562[U] | Apr 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1672201 | Champion | Jun 1928 | |
2630468 | Felts et al. | Mar 1953 | |
3914004 | Bone | Oct 1975 | |
4261632 | Narozny | Apr 1981 | |
4740171 | Holden et al. | Apr 1988 | |
5000698 | Kuzuno et al. | Mar 1991 |
Number | Date | Country |
---|---|---|
56-1368 | Jan 1981 | JPX |
59-226476 | Dec 1984 | JPX |
60-91573 | May 1985 | JPX |
Entry |
---|
Japanese Laid-Open Publication 2-54168 to Katsutoshi Kuzuno et al., dated Apr. 19, 1990. |