Number | Name | Date | Kind |
---|---|---|---|
3184700 | Burke et al. | May 1965 | |
3335386 | Upton | Aug 1967 | |
3341801 | Brookman et al. | Sep 1967 | |
3348187 | Friend | Oct 1967 | |
3781763 | Feeser et al. | Dec 1973 |
Entry |
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IBM Tech. Disc. Bulletin, Gafford, vol. 13, No. 3, p. 693, 8-1970. |