Number | Name | Date | Kind |
---|---|---|---|
1482792 | Hartman | Feb 1924 | |
1482793 | Hartman | Feb 1924 | |
1910444 | Nicholson | May 1933 | |
2294239 | Novotry et al. | Aug 1942 | |
2303284 | Klein | Nov 1942 | |
2497469 | Robie | Feb 1950 | |
2527044 | Walton et al. | Oct 1950 | |
3269815 | Koopman | Aug 1966 | |
4021208 | Oberbichler | May 1977 | |
4246004 | Busch et al. | Jan 1981 | |
4278449 | Helletsberger et al. | Jul 1981 | |
4472173 | Bruning | Sep 1984 | |
4561863 | Hashimoto et al. | Dec 1985 |
Entry |
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Industrial and Engineering Chemistry, vol. 47, No 12 (Dec. 1955) pp. 2493-2494, Loring Coes. |