Number | Date | Country | Kind |
---|---|---|---|
2002-082914 | Mar 2002 | JP |
Number | Name | Date | Kind |
---|---|---|---|
4300297 | Betterley | Nov 1981 | A |
4399599 | Howe | Aug 1983 | A |
4570368 | Stover | Feb 1986 | A |
5225162 | Scoville | Jul 1993 | A |
5538291 | Gustafson | Jul 1996 | A |
5697177 | Ludlow et al. | Dec 1997 | A |
6401372 | Kovner | Jun 2002 | B1 |
Number | Date | Country |
---|---|---|
402102099 | Apr 1990 | JP |
9-61521 | Mar 1997 | JP |
Entry |
---|
Japanese Patent Abstract in English—JP 9-61521. |