Heat treating in circulatory gases,申请号US19310567085-传众专利搜索

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发明名称	Heat treating in circulatory gases
摘要
申请公布号	US2012165(A)	申请公布日期	1935.08.20
申请号	US19310567085	申请日期	1931.10.05
申请人	HEVI DUTY ELECTRIC COMPANY	发明人	HANSEN FRED A.;KOCH HAROLD E.
分类号	C21D1/767	主分类号	C21D1/767
代理机构		代理人
主权项
地址

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