Number | Date | Country | Kind |
---|---|---|---|
21998 A/81 | May 1981 | ITX | |
19693 A/82 | Feb 1982 | ITX |
Number | Name | Date | Kind |
---|---|---|---|
3954417 | Roba et al. | May 1976 |
Number | Date | Country |
---|---|---|
2224148 | Oct 1974 | FRX |
1390748 | Apr 1975 | GBX |
2025417 | Jan 1980 | GBX |
Entry |
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Cantarelli, et al., "Chemical Abstracts", vol. 98, 1983, col. 98:179414m. |