Number | Date | Country | Kind |
---|---|---|---|
965437 | Dec 1996 | NOX |
Number | Name | Date | Kind |
---|---|---|---|
3661737 | Scherer | May 1972 | |
4385931 | Wallevik et al. | May 1983 | |
5439563 | Sivilotti | Aug 1995 |
Entry |
---|
Perry et al "Handbook of Inorganic Compounds", pp. 19-20, 1995 (no month). |