发明名称 Scraper apparatus and method
摘要 A scraper apparatus including a cart and a scraping arrangement located at a front of the cart. The scraping arrangement includes blades that are driven along a joint or crack by the cart to remove excess filling material deposited in the joint or crack of a working surface.
申请公布号 US7249914(B2) 申请公布日期 2007.07.31
申请号 US20060502211 申请日期 2006.08.10
申请人 DUE JOSEPH E 发明人 DUE JOSEPH E.
分类号 E01C7/12 主分类号 E01C7/12
代理机构 代理人
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