Number | Name | Date | Kind |
---|---|---|---|
4035175 | Brouwer et al. | Jul 1977 | |
4210762 | Howe | Jul 1980 | |
4654330 | Plant et al. | Mar 1987 |
Number | Date | Country |
---|---|---|
708460 | Dec 1970 | ZAX |
Entry |
---|
Japanese Patent Publication 57-188503 with Translation. |
Belgian Pat. 816,774. |
Japanese Patent Publication 57188-503, Chem. Abstr. 98, 121365e (1982). |
German Pat. No. 2,600,655, Chem. Abstr. 85, 155072d (1976). |