Perfectionnements aux aciers spéciaux,申请号FRD847680-传众专利搜索

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发明名称	Perfectionnements aux aciers spéciaux
摘要
申请公布号	FR847680(A)	申请公布日期	1939.10.13
申请号	FRD847680	申请日期	1938.12.17
申请人	EATON MANUFACTURING COMPANY	发明人
分类号	C22C38/54	主分类号	C22C38/54
代理机构		代理人
主权项
地址

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