Perfectionnements aux appareils pour l'essai de dureté des métaux,申请号FRD818451-传众专利搜索

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发明名称	Perfectionnements aux appareils pour l'essai de dureté des métaux
摘要
申请公布号	FR818451(A)	申请公布日期	1937.09.27
申请号	FRD818451	申请日期	1937.02.27
申请人	THOS. FIRTH & JOHN BROWN LIMITED	发明人
分类号	G01N3/42	主分类号	G01N3/42
代理机构		代理人
主权项
地址

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