Способ изготовления инструментального материала,申请号SU19550575648-传众专利搜索

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发明名称	Способ изготовления инструментального материала
摘要
申请公布号	SU111896(A1)	申请公布日期	1957.11.30
申请号	SU19550575648	申请日期	1955.03.31
申请人	PETROV L.V.	发明人	PETROV L.V.
分类号	C04B28/18	主分类号	C04B28/18
代理机构		代理人
主权项
地址

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