Method for heat treating in a semimuffle type furnace,申请号US19390258639-传众专利搜索

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发明名称	Method for heat treating in a semimuffle type furnace
摘要
申请公布号	US2237785(A)	申请公布日期	1941.04.08
申请号	US19390258639	申请日期	1939.02.27
申请人	JAMES H. KNAPP CO.	发明人	KNAPP JAMES H.
分类号	C21D9/00	主分类号	C21D9/00
代理机构		代理人
主权项
地址

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