Number | Date | Country | Kind |
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5-180396 | Jul 1993 | JPX |
Number | Name | Date | Kind |
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5402309 | Ohgami et al. | Mar 1995 |
Entry |
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IBM Technical Disclosure Bulletin, vol. 29, No. 8, pp. 3491 and 3492, dated Jan. 1987, "Access Method For Feature Expansion" Jan. 1987. |