Number | Name | Date | Kind |
---|---|---|---|
4303409 | Ogawa et al. | Dec 1981 | A |
5500375 | Lee-Own et al. | Mar 1996 | A |
5877028 | Chandler et al. | Mar 1999 | A |
Number | Date | Country |
---|---|---|
0291194 | Apr 1988 | EP |
WO 0127627 | Apr 2001 | WO |
Entry |
---|
Scientific Products General Catalog. p. 946. 1991. |