发明名称 Combined string line anchor and plumb bob
摘要 This invention is a tool combining the function of a string line or chalk line anchor and a plumb bob. This combined tool is comprised of a dart-like body having a longitudinal axial bore. A sharpened spike is clamped within the longitudinal bore. The amount of the spike extending from the body may be adjusted to accommodate the variety of material hardnesses encountered at the work site. In addition this tool has the added functionally of being able to easily and quickly replace a damaged or broken spike.
申请公布号 US6622393(B2) 申请公布日期 2003.09.23
申请号 US20010847614 申请日期 2001.05.02
申请人 BARTIMUS CHRISTOPHER SHAWN 发明人 BARTIMUS CHRISTOPHER SHAWN
分类号 B44D3/38;G01C15/10;(IPC1-7):G01C15/10;B43L7/00 主分类号 B44D3/38
代理机构 代理人
主权项
地址