Number | Name | Date | Kind |
---|---|---|---|
1833717 | Laird | Nov 1931 | |
2382944 | Porter | Aug 1945 | |
2541657 | Lynch et al. | Feb 1951 | |
2703788 | Morrisroe | Mar 1955 | |
2749212 | Crowder | Jun 1956 | |
2813900 | Dunlop et al. | Nov 1957 | |
3262411 | Kaltenecker | Jul 1966 | |
3404957 | Blaskowski | Oct 1968 |
Entry |
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Chemical Week, vol. 119, No. 21, pp. 70-71 (Nov. 24, 1976). |