Number | Date | Country | Kind |
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4-350461 | Dec 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4885777 | Takaragi et al. | Dec 1989 | |
5018195 | Takaragi et al. | May 1991 |
Entry |
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Tsujii, Shigeo, et al. "Cryptography and Information Security," published by Shokodo, pp. 127-147. (Provided in Japanese). |