Number | Date | Country | Kind |
---|---|---|---|
9-335246 | Dec 1997 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4143104 | Van Konijnenburg et al. | Mar 1979 | |
4249947 | Koga | Feb 1981 | |
4596601 | Rueckl | Jun 1986 |
Number | Date | Country |
---|---|---|
1360183 | Jan 1874 | GBX |
Entry |
---|
Derwent Abstracts AN 84-191712, JP 59-107960 (Jun. 22, 1984). |