发明名称 Self supporting string line tool
摘要 A string line tool having a string line reel and a uniquely shaped string line block integral with the string line reel. The string line tool is especially adapted to work on various construction tasks or jobs that require the use of a pair of pegs or rods stuck in the ground and spaced from each other at a predetermined distance. The uniquely shaped string line block has a semi-cylindrical inner surface and the string line reel has a string with a metal ring attached to a free end of the string. A main advantage in using this string line tool is that it is self supporting.
申请公布号 US7779546(B2) 申请公布日期 2010.08.24
申请号 US20080012200 申请日期 2008.02.01
申请人 BOND WILLIAM RALPH 发明人 BOND WILLIAM RALPH
分类号 G01C15/06 主分类号 G01C15/06
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