Snow shovel 申请(专利)号： US19780902260 专利号： US4149744A 主分类号： E01H5/02 申请权利人： THE UNION FORK & HOE COMPANY 公开国代码： US 优先权国家： US 摘 要： A snow shovel including a handle and a one-piece plastic scoop so formed of a minimum amount of material as to resist wear and breakage effectively. It has a self-sharpening reinforcing leading edge, a reinforcing flange at the remainder of its peripheral edge, a series of laterally-spaced reinforcing ribs extending from the leading edge rearwardly, and a centrally-disposed reinforcing keel or rib on its back surface extending from the leading edge to its handle-receiving socket. It also has crush ribs in the socket to allow the handle dimensional variations, prevent rotation of the scoop on the handle, and maintain a snug fit. 主权项： 申请日： 1978-05-02 公开公告日： 1979-04-17 分类号： E01H5/02 发明设计人： DAVID R. BONNES 申请国代码： US 优先权： 19780205 US 90226078 摘 要 附 图： 本文来源：https://www.wddqw.com/doc/0f111ee2e0bd960590c69ec3d5bbfd0a7856d59d.html