发明名称 Copper pipe cleaning system
摘要 A copper pipe cleaning assembly has an interior cleaning member and an exterior cleaning member, which are easily joined or separated as required, depending on the area of the pipe to be cleaned.
申请公布号 US6704964(B2) 申请公布日期 2004.03.16
申请号 US20010943974 申请日期 2001.08.31
申请人 KNOWLES PATRICK B. 发明人 KNOWLES PATRICK B.
分类号 A46B13/00;B08B9/02;B08B9/023;B23B5/16;(IPC1-7):B08B9/02;A46B13/02 主分类号 A46B13/00
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