Number | Date | Country | Kind |
---|---|---|---|
43 39 698.4 | Nov 1993 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4663448 | Chiu | May 1987 | |
4719272 | Tsai et al. | Jan 1988 |
Number | Date | Country |
---|---|---|
0132046 | Jan 1985 | EPX |
0362671 | Apr 1990 | EPX |
Entry |
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L. Hough, et al., Recal. Trav. Chim. Pays-Bas, vol. 110, pp. 450-458 (1991). |