Number | Date | Country | Kind |
---|---|---|---|
2-135726 | May 1990 | JPX | |
2-417870 | Dec 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4135083 | Van Alem et al. | Jan 1979 | |
5036507 | Yamashita | Jul 1991 |
Number | Date | Country |
---|---|---|
61-196434 | Aug 1986 | JPX |
2143973 | Feb 1985 | GBX |
Entry |
---|
61-196434, Aug. 30, 1986, Japan Abstract, 369-42.32. |