Number | Date | Country | Kind |
---|---|---|---|
4-205362 | Jul 1992 | JPX | |
4-205363 | Jul 1992 | JPX | |
4-205364 | Jul 1992 | JPX | |
5-161857 | Jun 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2773881 | Dunn et al. | Dec 1956 | |
5003084 | Su et al. | Mar 1991 |
Number | Date | Country |
---|---|---|
0443758 | Aug 1991 | EPX |
Entry |
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Chemical Abstracts, vol. 82, No. 23, Jun. 9, 1975, Columbus, Ohio; Sergio Fumasoni et al. |