Number | Name | Date | Kind |
---|---|---|---|
3768083 | Pejcha | Oct 1973 | |
3936880 | McGinnis et al. | Feb 1976 | |
3947885 | McGinnis et al. | Mar 1976 | |
3994017 | Barkhuff et al. | Nov 1976 | |
4011591 | Orlando et al. | Mar 1977 | |
4019204 | Griffiths et al. | Apr 1977 |
Entry |
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IBM Tech. Disc. Bulletin, G.D. Herring et al., Adjustable Flexible Disc Assembly, vol. 17, No. 6, Nov. 1974, pp. 1710-1711 |