发明名称 AN INTERCHANGABLE SCRAPER AND SHOVEL
摘要 An interchangabel scraper and shovel having a handle carrying an improved scraper blade at one end thereof, a shovel blade having offset flanged strips on its lower surface for receiving said scraper blade and means carried on the said shovel blade and the said scraper blade for securing said shovel blade to said scraper blade.
申请公布号 CA2209800(A1) 申请公布日期 1999.02.11
申请号 CA19972209800 申请日期 1997.08.11
申请人 CHANG, WILLIAM 发明人 CHANG, WILLIAM
分类号 A01B1/22;B25G3/12;B25G3/18;(IPC1-7):E01H5/02;A01B1/20 主分类号 A01B1/22
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