Number | Name | Date | Kind |
---|---|---|---|
3304449 | Pohlman | Feb 1967 | |
3378710 | Martin, Jr. | Apr 1968 | |
3391289 | Danilewicz et al. | Jul 1968 | |
3527220 | Summers | Sep 1970 | |
3886948 | Hakim | Jun 1975 | |
4156422 | Hildebrandt et al. | May 1979 | |
4340038 | McKean | Jul 1982 | |
4360007 | Levy et al. | Nov 1982 | |
4443214 | Marion | Apr 1984 | |
4540400 | Hoover | Sep 1985 |
Entry |
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Conrad, Coleman W., "Stepping Motors", Machine Design, Apr. 11, 1974, pp. 78-80. |