发明名称 Guide bar for a hose which is physically manipulated by workers to deliver a high density material to a predeterminated site
摘要 A guide bar for use by workers involved in the manipulation of a hose which carries a high density material to a predetermined site. The bar is preferably used in the building trades by a work gang involved in the delivery of concrete. The guide bar includes a clamp for attachment to the hose, the bar itself which includes handle grasping means and a flexible connection between the clamp and the bar.
申请公布号 US4838465(A) 申请公布日期 1989.06.13
申请号 US19860866116 申请日期 1986.05.22
申请人 METZGER, LYNN 发明人 METZGER, LYNN
分类号 E04G21/04 主分类号 E04G21/04
代理机构 代理人
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