CN102673271A - 一种方便画多条间距相同平行线的尺子 - Google Patents
一种方便画多条间距相同平行线的尺子 Download PDFInfo
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- CN102673271A CN102673271A CN2011100596779A CN201110059677A CN102673271A CN 102673271 A CN102673271 A CN 102673271A CN 2011100596779 A CN2011100596779 A CN 2011100596779A CN 201110059677 A CN201110059677 A CN 201110059677A CN 102673271 A CN102673271 A CN 102673271A
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CN2011100596779A CN102673271A (zh) | 2011-03-11 | 2011-03-11 | 一种方便画多条间距相同平行线的尺子 |
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CN2011100596779A CN102673271A (zh) | 2011-03-11 | 2011-03-11 | 一种方便画多条间距相同平行线的尺子 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102963181A (zh) * | 2012-11-17 | 2013-03-13 | 中国科学院东北地理与农业生态研究所 | 一种划线装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102963181A (zh) * | 2012-11-17 | 2013-03-13 | 中国科学院东北地理与农业生态研究所 | 一种划线装置 |
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Application publication date: 20120919 |