Number | Date | Country | Kind |
---|---|---|---|
2-042816 | Feb 1990 | JPX | |
2-305766 | Nov 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4286888 | Bennett | Sep 1981 | |
4300847 | Hoffman | Nov 1981 | |
4558963 | Applegate | Dec 1985 | |
4728206 | Mori | Mar 1988 | |
4850725 | Walker | Jul 1989 |
Number | Date | Country |
---|---|---|
194593 | Nov 1983 | JPX |
19189 | Jan 1984 | JPX |
187885 | Oct 1984 | JPX |
20794 | Jan 1986 | JPX |
61-72575 | Apr 1986 | JPX |
61-72576 | Apr 1986 | JPX |
272186 | Dec 1986 | JPX |
233271 | Oct 1987 | JPX |
267180 | Nov 1987 | JPX |
296976 | Dec 1988 | JPX |
52785 | Feb 1990 | JPX |
Entry |
---|
IBM Technical Disclosure Bulletin, vol. 29, #11, "Mechanical Ribbon Saver . . . ", Apr. 1987. |
IBM Technical Disclosure Bulletin, vol. 30, #8, "Ribbon Feed Mechanism . . . ", Jan. 1988. |