| Number | Name | Date | Kind |
|---|---|---|---|
| 3908149 | Gergoe et al. | Sep 1975 | A |
| 4041301 | Pelchat | Aug 1977 | A |
| 4349722 | Kurth et al. | Sep 1982 | A |
| 4686741 | Moore et al. | Aug 1987 | A |
| 4892342 | Newman et al. | Jan 1990 | A |
| 4914779 | Nakai et al. | Apr 1990 | A |
| 5129694 | Taninoto et al. | Jul 1992 | A |
| 5298306 | Miller | Mar 1994 | A |
| 5530989 | Remert et al. | Jul 1996 | A |
| 5651163 | Tamaki | Jul 1997 | A |
| 5709453 | Krent et al. | Jan 1998 | A |
| 6036244 | Tyves et al. | Mar 2000 | A |
| 6070998 | Jennings et al. | Jun 2000 | A |
| 6164805 | Hulse | Dec 2000 | A |
| Number | Date | Country |
|---|---|---|
| 29921826 | Apr 2000 | DE |
| 2298748 | Sep 1996 | GB |
| Entry |
|---|
| JP Laying—open gazette No. 1-278835/89, Nov., 1989. |
| JP Laying—open gazette No. 1-299966/89, Dec. 1989. |
| JP Laying—open gazette No. 1-299967/89, Dec., 1989. |