Number | Date | Country | Kind |
---|---|---|---|
87 17882 | Dec 1987 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3753021 | Braun | Aug 1973 | |
3795832 | Holland | Mar 1974 | |
3821581 | Holland et al. | Jun 1974 | |
3900751 | Holland et al. | Aug 1975 | |
4189658 | Schleinkofer | Feb 1980 | |
4344012 | Hubner et al. | Aug 1982 | |
4392238 | Lersmacher et al. | Jul 1983 | |
4461019 | Lersmacher | Jul 1984 | |
4799250 | Penato et al. | Jan 1989 | |
4847883 | Fourre | Jul 1989 |
Number | Date | Country |
---|---|---|
0050893 | May 1982 | EPX |
2593325 | Jul 1987 | FRX |
2593638 | Jul 1987 | FRX |
225343 | Nov 1985 | JPX |
Entry |
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Patent Abstracts of Japan, vol. 10, No. 79(E-391)[2136], Mar. 28, 1986. |