发明名称 |
STUDY DEVICE FOR MORE EASILY UNDERSTANDING A TRAVERSE SURVEY AND SUVEY STUDYING METHOD USING IT |
摘要 |
PURPOSE: A learning material for measuring a traverse and a measurement learning method using the same are provided to visually enlighten a traverse measuring concept by displaying the azimuth, the bearing, the latitude, and the departure. CONSTITUTION: A disk(1) includes a center pole(4) and a receiving groove(2'). An angle displaying part(2) displays angles and bearings in the range of 0 to 360 degrees. A circular gradation indicator(5) includes a first through holes inserted into the center pole of the disk. A plurality of graduated rulers(3) forms a first through hole at one side. The first though hole of the graduated rulers is inserted into the center pole of the disk. |
申请公布号 |
KR20110071154(A) |
申请公布日期 |
2011.06.29 |
申请号 |
KR20090127627 |
申请日期 |
2009.12.21 |
申请人 |
YUN, EUN KUNG |
发明人 |
YUN, KI CERL;YUN, SUK HEN;YUN, EUN KUNG |
分类号 |
G09B25/06 |
主分类号 |
G09B25/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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