Number | Date | Country | Kind |
---|---|---|---|
7-126573 | May 1995 | JPX | |
7-298514 | Nov 1995 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
5116432 | Kerner | May 1992 | |
5334260 | Stefanowski | Aug 1994 |
Number | Date | Country |
---|---|---|
6-92038 | Nov 1994 | JPX |
7-116889 | May 1995 | JPX |
Entry |
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Kirk-Othmer, "Oxalic Acid", Kirk-Othmer Encyclopedia of Chemical Technology 3rd. ed., V. 16., John Wiley & Sons. 1981 (no month). |