发明名称 METHOD OF MAKING TOOTH POINT AND PRODUCT
摘要 A method of making a tooth point and product wherein a tubular blank of alloy steel is heated, shaped at one end to provide a box section and shaped at the other end to provide a blade made up of two layers of steel forged together.
申请公布号 CA2055409(A1) 申请公布日期 1992.05.16
申请号 CA19912055409 申请日期 1991.11.13
申请人 ESCO CORPORATION 发明人 HAHN, FREDERICK C.
分类号 B21D53/00;B23P15/00;C21D8/10;E02F9/28;(IPC1-7):E02F3/40 主分类号 B21D53/00
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