Number | Name | Date | Kind |
---|---|---|---|
2067385 | Evans et al. | Jan 1937 | |
2198046 | Vierling | Apr 1950 |
Number | Date | Country |
---|---|---|
2450667 | Oct 1973 | DEX |
51-29413 | Mar 1976 | JPX |
6401246 | Aug 1965 | NLX |
957000 | Apr 1964 | GBX |
1176620 | Jan 1970 | GBX |
Entry |
---|
Andrieth, Liquid Sulfur Dioxide, Stauffer Chemical Co., New York, (1969), p. 2. |