Number | Name | Date | Kind |
---|---|---|---|
2811658 | Brainard | Oct 1957 | |
3209187 | Angele | Sep 1965 | |
3293466 | Henry-Baudot | Dec 1966 | |
3296471 | Cochardt | Jan 1967 | |
3356877 | Burr | Dec 1967 | |
3424578 | Strnat et al. | Jan 1969 | |
3564705 | Cochhardt | Feb 1971 | |
3828213 | Yamashita et al. | Aug 1974 | |
3836802 | Parker | Sep 1974 | |
3906268 | DE Graffeuried | Sep 1975 |
Number | Date | Country |
---|---|---|
1174418 | Jul 1964 | DE |
Entry |
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IBM Tech. Disclosure Bulletin, "Permanent Magnet DC Motor", Fisher et al., vol. 10, No. 8, 1/68 pp. 1253-1254. |
"Permanent Magnet DC Motor", IBM Tech. Disclosure Bulletin, Fisher & Hu, vol. 10, No. 8, 1/68, pp. 1233, 1234. |