Number | Date | Country | Kind |
---|---|---|---|
3230/87 | Aug 1987 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
1329435 | Singer et al. | Feb 1920 |
Entry |
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Havlickova et al., Chemical Abstracts, vol. 99, No. 38456K (1982). |
Havlickova et al., Chemical Abstracts, vol. 98, No. 5440b, (1982). |