Number | Date | Country | Kind |
---|---|---|---|
62-31064[U] | Mar 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3990565 | Felton et al. | Nov 1976 | |
4509873 | Ryan | Apr 1985 |
Number | Date | Country |
---|---|---|
0066988 | Apr 1982 | JPX |
0166088 | Oct 1983 | JPX |
0094377 | May 1985 | JPX |
2177246 | Jan 1987 | GBX |
Entry |
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"Access Method for Feature Expansion", IBM Technical Disclosure Bulletin, vol. 29, No. 8, Jan. 1987, p. 3491. |
Wang, J. P., "Cartridge Cover for a Typewriter", IBM Technical Disclosure Bulletin, vol. 24, No. 1B, Jun. 1981, p. 578. |