Number | Name | Date | Kind |
---|---|---|---|
3147225 | Ryan | Sep 1964 | |
3409770 | Clapham, Jr. | Nov 1968 | |
3944333 | Leibowitz | Mar 1976 | |
3998525 | Giglia | Dec 1976 | |
4116546 | Leibowitz | Sep 1978 | |
4126384 | Goodman et al. | Nov 1978 |
Entry |
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J. H. Zechman, "Alphanumeric Electrochemical Display", IBM Technical Disclosure Bulletin, vol. 14, No. 1, Jun., 1971, pp. 201-202. |