Number | Date | Country | Kind |
---|---|---|---|
44 39 143.9 | Nov 1994 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3427244 | Boes | Feb 1969 | |
5077775 | Vetter | Dec 1991 | |
5381456 | Vetter et al. | Jan 1995 |
Number | Date | Country |
---|---|---|
0216278 | Apr 1987 | EPX |
0378274 | Jul 1990 | EPX |
0578314 | Jan 1994 | EPX |
Entry |
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"The Place of Oilless Bearings in Industry" C.D. Spadone, The Engineers Digest, 16, Jan. 1995 pp. 14-16. |
"Fullerenes" Robert Curl et al, Scientific American, Oct., 1991, pp. 32-41. |