Number | Name | Date | Kind |
---|---|---|---|
2529712 | Teague | Nov 1950 | |
2531863 | Scott et al. | Nov 1950 | |
2760951 | Park et al. | Aug 1956 | |
3917558 | Gardakis et al. | Nov 1975 | |
4341668 | Martin et al. | Jul 1982 | |
4379866 | Henry, Jr. et al. | Apr 1983 |
Number | Date | Country |
---|---|---|
2045201 | Dec 1991 | CAX |
Entry |
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Technical Bulletin "TB60" of the Argus Chemical Company. |