Acier spécial,申请号FRD799561-传众专利搜索

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发明名称	Acier spécial
摘要
申请公布号	FR799561(A)	申请公布日期	1936.06.15
申请号	FRD799561	申请日期	1935.12.18
申请人	THE CLEVELAND TWIST DRILL CO	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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