Counterflow carburizing machine,申请号US19290347421-传众专利搜索

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发明名称	Counterflow carburizing machine
摘要
申请公布号	US1819509(A)	申请公布日期	1931.08.18
申请号	US19290347421	申请日期	1929.03.15
申请人	HARRIS HENRY H	发明人	HARRIS HENRY H.
分类号	C23C8/66	主分类号	C23C8/66
代理机构		代理人
主权项
地址

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