Number | Date | Country | Kind |
---|---|---|---|
3808314 | Mar 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3924702 | Heggen | Dec 1975 | |
4154471 | Long | May 1979 | |
4342470 | Matsuda | Aug 1982 | |
4583761 | Negel et al. | Apr 1986 | |
4840424 | Asoh | Jun 1989 |
Number | Date | Country |
---|---|---|
3525251 | Mar 1987 | DEX |
2905528 | Mar 1988 | DEX |
8402317 | Jun 1984 | WOX |
Entry |
---|
International Search Report No. PCT/EP 83/00322. |