Number | Name | Date | Kind |
---|---|---|---|
3529301 | Hiruta | Sep 1970 | |
3593327 | Shill | Jul 1971 | |
3678481 | Dalziel et al. | Jul 1972 | |
3696350 | Cohen et al. | Oct 1972 | |
3815150 | Stoddard et al. | Jun 1974 | |
3940793 | Bleiman | Feb 1976 | |
3947886 | Heidecker et al. | Mar 1976 | |
3951264 | Heidecker et al. | Apr 1976 | |
3959823 | Heidecker et al. | May 1976 | |
3975768 | Jacques et al. | Aug 1976 | |
3990111 | Elliott | Nov 1976 | |
4074330 | Norton et al. | Feb 1978 | |
4089029 | Castrodale et al. | May 1978 | |
4125883 | Rolph | Nov 1978 | |
4131199 | Hatchett et al. | Dec 1978 | |
4306259 | Saito et al. | Dec 1981 | |
4502083 | Bauck et al. | Feb 1985 |
Number | Date | Country |
---|---|---|
2309012 | Nov 1976 | FRX |
2460024 | Jan 1981 | FRX |
Entry |
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Disk Drive for Interchangeable Flexible Disk Cartridges, M. W. J. Carmichael and N. A. Feliss, vol. 20, No. 11A, April 1978, IBM Technical Disclosure Bulletin, pp. 4621-4622. |