Number | Name | Date | Kind |
---|---|---|---|
2292208 | De Groote | Aug 1942 | A |
2999063 | Hoeppel | Sep 1961 | A |
3527584 | Thayer | Sep 1970 | A |
3728277 | Foley | Apr 1973 | A |
4374737 | Larson et al. | Feb 1983 | A |
4478602 | Kelley et al. | Oct 1984 | A |
4713183 | Patel et al. | Dec 1987 | A |
Entry |
---|
International Search Report—International Application No. PCT/US 03/02903—International Filing Date Jan. 31, 2003—Applicant: M-I L.L.C. |