Number | Name | Date | Kind |
---|---|---|---|
2053474 | Graves | Sep 1936 | |
2813830 | Trautman | Nov 1957 | |
4440656 | Horodysky | Apr 1984 | |
4472289 | Horodysky et al. | Sep 1984 |
Entry |
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Boner, "Lubricating Greases" 1954 pp. 435-437, 497-498. |
Smalheer, "Lubricant Additives," 1967,Chap. 1. |