Number | Date | Country | Kind |
---|---|---|---|
4137464 | Nov 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
5015731 | Schwaiger et al. | May 1991 |
Number | Date | Country |
---|---|---|
WO9013603 | Nov 1990 | WOX |
WO9013604 | Nov 1990 | WOX |
Entry |
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Buech et al, Chemical Abstracts, vol. 114, No. 187558a (1991). |
Buech et al, Chemical Abstracts, vol. 115, No. 51844d (1991). |