Number | Name | Date | Kind |
---|---|---|---|
3349887 | Goff, Jr. | Oct 1967 | |
3442366 | Spears | May 1969 | |
3731781 | Caudill et al. | May 1973 | |
3877561 | Guerrini et al. | Apr 1975 | |
4010839 | Guerrini et al. | Mar 1977 | |
4022401 | Kishi | May 1977 | |
4074799 | Hishida et al. | Feb 1978 |
Entry |
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IBM Technical Disclosure Bulletin, vol. 18, No. 4, Sep. 1975, "Ribbon Drag Wire", E. J. Lenney p. 1093. |
IBM Technical Disclosure Bulletin, vol. 23, No. 5, Oct. 1980, "Constant-Tension Ribbon Cartridge", pp. 1741-1742. |