Number | Date | Country | Kind |
---|---|---|---|
5090/87 | Dec 1987 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
2803609 | Schlenker | Aug 1957 | |
3484398 | Childs | Dec 1969 | |
4013987 | Foster | Mar 1977 | |
4638021 | Ando et al. | Jan 1987 |
Number | Date | Country |
---|---|---|
50-140600 | Nov 1975 | JPX |
60-123526 | Jul 1985 | JPX |
60-190417 | Sep 1985 | JPX |
1422907 | Jan 1976 | GBX |
Entry |
---|
Kobunshi Kagaku, vol. 30, No. 335, pp. 121-125 (Mar. 1973). |