【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《Snow shovel》，欢迎阅读！
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：
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2022-10-08
