Number | Date | Country | Kind |
---|---|---|---|
3903421 | Feb 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3557068 | Huber | Jan 1971 | |
3931248 | Maekawa et al. | Jan 1976 | |
4399239 | Herwig et al. | Aug 1983 | |
4909959 | Lemaire et al. | Mar 1990 | |
4962158 | Kobayashi et al. | Oct 1990 | |
4968583 | Ohshio et al. | Nov 1990 | |
4986886 | Wei et al. | Jan 1991 | |
4988608 | Tanaka et al. | Jan 1991 | |
5002852 | Lewis et al. | Mar 1991 |
Number | Date | Country |
---|---|---|
0315375 | May 1989 | EPX |
0348961 | Jan 1990 | EPX |
Entry |
---|
Chem. Abs. (102) 229567n (1985). |
Chem. Abs. (108) 29440c (1988). |
Patent Abstracts of Japan, vol. 11, No. 331 of JP-A-62 113136 dated May 25, 1987. |
Patent Abstracts of Japan, vol. 11, No. 331 or JP-A-62 113134 dated May 25, 1987. |
Patent Abstracts of Japan, vol. 11, No. 331, of JP-A-62 113139 dated May 25, 1987. |