Number | Name | Date | Kind |
---|---|---|---|
3795883 | Ackerman et al. | Mar 1974 | |
4530562 | Reynolds, Jr. | Jul 1985 | |
4725240 | Braverman | Feb 1988 |
Number | Date | Country |
---|---|---|
0086790 | Feb 1966 | FRX |
6405906 | Nov 1965 | NLX |
Entry |
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Quill Corp. Catalog, copyright 1986, p. 5, IBM Keyboard Cord (c). |