发明名称 Rigid 4X4 fence post form
摘要 The Rigid Polyethylene 4x4 Fence Post Form (Rigid Post Form) is a rigid sleeve with a bottom, designed to fit over the end of 4x4 wooden posts to allow for removal of a post after cementing in place. The Rigid Post Form is held in place with two stainless steel screws at the top of the sleeve. The Rigid Post Form also provides protection of wooden posts from wood rot below grade-level and damage from wood rot and lawn tools at grade-level. The Rigid Post Form is easy to install and is cost effective.
申请公布号 US2002139069(A1) 申请公布日期 2002.10.03
申请号 US20010820775 申请日期 2001.03.30
申请人 BUFFKIN D. GLYNN;RICE WILLIAM J. 发明人 BUFFKIN D. GLYNN;RICE WILLIAM J.
分类号 E04H12/22;(IPC1-7):E02D27/00 主分类号 E04H12/22
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