发明名称 Device and method to support polyethylene or other sheeting
摘要 An improved device for piercing and supporting sheeting from a previously installed ceiling grid molding and method for a single worker to install and seal sheeting around the periphery of a room to isolate the room for asbestos removal.
申请公布号 US5207403(A) 申请公布日期 1993.05.04
申请号 US19920818778 申请日期 1992.01.13
申请人 PENNIMAN, DAVID T. 发明人 PENNIMAN, DAVID T.
分类号 B08B17/04 主分类号 B08B17/04
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