发明名称 Plumbline has handle for alignment and sprung clamp length adjustment is easy and accurate to use.
摘要 The plumbline has a stepped holder with parts B and C to fit against a wall and part A with a sprung cone clamp which grips the plump line for height adjustment and is released to control the length by pressure on the knob.
申请公布号 FR2800160(A1) 申请公布日期 2001.04.27
申请号 FR19990013487 申请日期 1999.10.26
申请人 BALDI ALBERT JOSE 发明人 BALDI ALBERT JOSE
分类号 G01C15/10;(IPC1-7):G01C15/10 主分类号 G01C15/10
代理机构 代理人
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