High-speed tool-steel alloy,申请号US19270217007-传众专利搜索

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发明名称	High-speed tool-steel alloy
摘要
申请公布号	US1756282(A)	申请公布日期	1930.04.29
申请号	US19270217007	申请日期	1927.09.01
申请人	COULS GEORGE R	发明人	COULS GEORGE R.
分类号	C22C38/24	主分类号	C22C38/24
代理机构		代理人
主权项
地址

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