Number | Date | Country | Kind |
---|---|---|---|
49-88381 | Aug 1974 | JA |
Number | Name | Date | Kind |
---|---|---|---|
3552355 | Flint | Jan 1971 | |
3641977 | Hudson | Feb 1972 | |
3666518 | Luttman et al. | May 1972 | |
3703395 | Drexler et al. | Nov 1972 | |
3754963 | Chang | Aug 1973 | |
3793985 | Hagenbach | Feb 1974 | |
3834350 | Hodges | Sep 1974 | |
3839992 | Takahashi | Oct 1974 |
Entry |
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IBM Technical Disclosure Bulletin, "Magnet Configuration For Magnetic Brush Developer," R. J. Hoekzema, vol. 14, No. 9, Feb. 1972 pp. 2787-2788. |