CN101833898B - 一种随机数字防伪方法 - Google Patents
一种随机数字防伪方法 Download PDFInfo
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- CN101833898B CN101833898B CN 200910127490 CN200910127490A CN101833898B CN 101833898 B CN101833898 B CN 101833898B CN 200910127490 CN200910127490 CN 200910127490 CN 200910127490 A CN200910127490 A CN 200910127490A CN 101833898 B CN101833898 B CN 101833898B
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CN 200910127490 CN101833898B (zh) | 2009-03-09 | 2009-03-09 | 一种随机数字防伪方法 |
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CN 200910127490 CN101833898B (zh) | 2009-03-09 | 2009-03-09 | 一种随机数字防伪方法 |
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CN101833898A CN101833898A (zh) | 2010-09-15 |
CN101833898B true CN101833898B (zh) | 2013-06-12 |
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Citations (1)
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CN2348449Y (zh) * | 1998-07-03 | 1999-11-10 | 张永平 | 防伪标牌 |
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CN2348449Y (zh) * | 1998-07-03 | 1999-11-10 | 张永平 | 防伪标牌 |
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