Number | Name | Date | Kind |
---|---|---|---|
3017832 | MacDonald | Jan 1962 | |
3119092 | Edgerton | Jan 1964 | |
3803598 | Abernathy et al. | Apr 1974 |
Entry |
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Rines, Wyckoff, Edgerton & Klein, Technology Review, Mar./Apr. 1976, pp. 25-40. |
Abbott, IBM Technical Disclosure Bulletin, vol. 12, No. 7, Dec. 1969, pp. 1119, 1120. |